1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
|
|
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
66 | # endif |
63 | |
67 | |
64 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
75 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
77 | # endif |
81 | # endif |
78 | # endif |
82 | # endif |
79 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
80 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
83 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
84 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
85 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
86 | # endif |
100 | # endif |
87 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
88 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
90 | # define EV_USE_SELECT 1 |
|
|
91 | # else |
|
|
92 | # define EV_USE_SELECT 0 |
|
|
93 | # endif |
105 | # endif |
94 | # endif |
|
|
95 | |
|
|
96 | # ifndef EV_USE_POLL |
|
|
97 | # if HAVE_POLL && HAVE_POLL_H |
|
|
98 | # define EV_USE_POLL 1 |
|
|
99 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
100 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
101 | # endif |
|
|
102 | # endif |
109 | # endif |
103 | |
110 | |
104 | # ifndef EV_USE_EPOLL |
|
|
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
106 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
107 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
108 | # define EV_USE_EPOLL 0 |
|
|
109 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
110 | # endif |
118 | # endif |
111 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
112 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
114 | # define EV_USE_KQUEUE 1 |
|
|
115 | # else |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
|
117 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
118 | # endif |
127 | # endif |
119 | |
128 | |
120 | # ifndef EV_USE_PORT |
|
|
121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
122 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
123 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
124 | # define EV_USE_PORT 0 |
|
|
125 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
126 | # endif |
136 | # endif |
127 | |
137 | |
128 | # ifndef EV_USE_INOTIFY |
|
|
129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
130 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
131 | # else |
|
|
132 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
133 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
134 | # endif |
145 | # endif |
135 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
136 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
137 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
138 | # define EV_USE_EVENTFD 1 |
|
|
139 | # else |
|
|
140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
|
|
154 | # endif |
|
|
155 | |
|
|
156 | # if HAVE_EVENTFD |
|
|
157 | # ifndef EV_USE_EVENTFD |
|
|
158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_EVENTFD |
|
|
162 | # define EV_USE_EVENTFD 0 |
142 | # endif |
163 | # endif |
143 | |
164 | |
144 | #endif |
165 | #endif |
145 | |
166 | |
146 | #include <math.h> |
|
|
147 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
148 | #include <fcntl.h> |
169 | #include <fcntl.h> |
149 | #include <stddef.h> |
170 | #include <stddef.h> |
150 | |
171 | |
151 | #include <stdio.h> |
172 | #include <stdio.h> |
152 | |
173 | |
153 | #include <assert.h> |
174 | #include <assert.h> |
154 | #include <errno.h> |
175 | #include <errno.h> |
155 | #include <sys/types.h> |
176 | #include <sys/types.h> |
156 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
157 | |
179 | |
158 | #include <signal.h> |
180 | #include <signal.h> |
159 | |
181 | |
160 | #ifdef EV_H |
182 | #ifdef EV_H |
161 | # include EV_H |
183 | # include EV_H |
162 | #else |
184 | #else |
163 | # include "ev.h" |
185 | # include "ev.h" |
164 | #endif |
186 | #endif |
|
|
187 | |
|
|
188 | EV_CPP(extern "C" {) |
165 | |
189 | |
166 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
167 | # include <sys/time.h> |
191 | # include <sys/time.h> |
168 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
169 | # include <unistd.h> |
193 | # include <unistd.h> |
… | |
… | |
172 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
173 | # include <windows.h> |
197 | # include <windows.h> |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
176 | # endif |
200 | # endif |
|
|
201 | # undef EV_AVOID_STDIO |
177 | #endif |
202 | #endif |
|
|
203 | |
|
|
204 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
205 | * a limit of 1024 into their select. Where people have brains, |
|
|
206 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
207 | * ordered to have a vacuum, or they do anything for money. |
|
|
208 | * This might help. Or not. |
|
|
209 | */ |
|
|
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
178 | |
211 | |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
213 | |
|
|
214 | /* try to deduce the maximum number of signals on this platform */ |
|
|
215 | #if defined (EV_NSIG) |
|
|
216 | /* use what's provided */ |
|
|
217 | #elif defined (NSIG) |
|
|
218 | # define EV_NSIG (NSIG) |
|
|
219 | #elif defined(_NSIG) |
|
|
220 | # define EV_NSIG (_NSIG) |
|
|
221 | #elif defined (SIGMAX) |
|
|
222 | # define EV_NSIG (SIGMAX+1) |
|
|
223 | #elif defined (SIG_MAX) |
|
|
224 | # define EV_NSIG (SIG_MAX+1) |
|
|
225 | #elif defined (_SIG_MAX) |
|
|
226 | # define EV_NSIG (_SIG_MAX+1) |
|
|
227 | #elif defined (MAXSIG) |
|
|
228 | # define EV_NSIG (MAXSIG+1) |
|
|
229 | #elif defined (MAX_SIG) |
|
|
230 | # define EV_NSIG (MAX_SIG+1) |
|
|
231 | #elif defined (SIGARRAYSIZE) |
|
|
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
233 | #elif defined (_sys_nsig) |
|
|
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
235 | #else |
|
|
236 | # error "unable to find value for NSIG, please report" |
|
|
237 | /* to make it compile regardless, just remove the above line, */ |
|
|
238 | /* but consider reporting it, too! :) */ |
|
|
239 | # define EV_NSIG 65 |
|
|
240 | #endif |
|
|
241 | |
|
|
242 | #ifndef EV_USE_FLOOR |
|
|
243 | # define EV_USE_FLOOR 0 |
|
|
244 | #endif |
180 | |
245 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
247 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
184 | # else |
249 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
186 | # endif |
251 | # endif |
187 | #endif |
252 | #endif |
188 | |
253 | |
189 | #ifndef EV_USE_MONOTONIC |
254 | #ifndef EV_USE_MONOTONIC |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
191 | # define EV_USE_MONOTONIC 1 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
192 | # else |
257 | # else |
193 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
259 | # endif |
195 | #endif |
260 | #endif |
196 | |
261 | |
… | |
… | |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
264 | #endif |
200 | |
265 | |
201 | #ifndef EV_USE_NANOSLEEP |
266 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
267 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
268 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
204 | # else |
269 | # else |
205 | # define EV_USE_NANOSLEEP 0 |
270 | # define EV_USE_NANOSLEEP 0 |
206 | # endif |
271 | # endif |
207 | #endif |
272 | #endif |
208 | |
273 | |
209 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
210 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
211 | #endif |
276 | #endif |
212 | |
277 | |
213 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
214 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
215 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
216 | # else |
281 | # else |
217 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
218 | # endif |
283 | # endif |
219 | #endif |
284 | #endif |
220 | |
285 | |
221 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
223 | # define EV_USE_EPOLL 1 |
288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
224 | # else |
289 | # else |
225 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
226 | # endif |
291 | # endif |
227 | #endif |
292 | #endif |
228 | |
293 | |
… | |
… | |
234 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
235 | #endif |
300 | #endif |
236 | |
301 | |
237 | #ifndef EV_USE_INOTIFY |
302 | #ifndef EV_USE_INOTIFY |
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
239 | # define EV_USE_INOTIFY 1 |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
240 | # else |
305 | # else |
241 | # define EV_USE_INOTIFY 0 |
306 | # define EV_USE_INOTIFY 0 |
242 | # endif |
307 | # endif |
243 | #endif |
308 | #endif |
244 | |
309 | |
245 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
246 | # if EV_MINIMAL |
311 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
247 | # define EV_PID_HASHSIZE 1 |
|
|
248 | # else |
|
|
249 | # define EV_PID_HASHSIZE 16 |
|
|
250 | # endif |
|
|
251 | #endif |
312 | #endif |
252 | |
313 | |
253 | #ifndef EV_INOTIFY_HASHSIZE |
314 | #ifndef EV_INOTIFY_HASHSIZE |
254 | # if EV_MINIMAL |
315 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
255 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
256 | # else |
|
|
257 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
258 | # endif |
|
|
259 | #endif |
316 | #endif |
260 | |
317 | |
261 | #ifndef EV_USE_EVENTFD |
318 | #ifndef EV_USE_EVENTFD |
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
263 | # define EV_USE_EVENTFD 1 |
320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
264 | # else |
321 | # else |
265 | # define EV_USE_EVENTFD 0 |
322 | # define EV_USE_EVENTFD 0 |
|
|
323 | # endif |
|
|
324 | #endif |
|
|
325 | |
|
|
326 | #ifndef EV_USE_SIGNALFD |
|
|
327 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
328 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
329 | # else |
|
|
330 | # define EV_USE_SIGNALFD 0 |
266 | # endif |
331 | # endif |
267 | #endif |
332 | #endif |
268 | |
333 | |
269 | #if 0 /* debugging */ |
334 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
335 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
336 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
337 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
338 | #endif |
274 | |
339 | |
275 | #ifndef EV_VERIFY |
340 | #ifndef EV_VERIFY |
276 | # define EV_VERIFY !EV_MINIMAL |
341 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
277 | #endif |
342 | #endif |
278 | |
343 | |
279 | #ifndef EV_USE_4HEAP |
344 | #ifndef EV_USE_4HEAP |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
345 | # define EV_USE_4HEAP EV_FEATURE_DATA |
281 | #endif |
346 | #endif |
282 | |
347 | |
283 | #ifndef EV_HEAP_CACHE_AT |
348 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
350 | #endif |
|
|
351 | |
|
|
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
353 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
354 | #if EV_USE_CLOCK_SYSCALL |
|
|
355 | # include <syscall.h> |
|
|
356 | # ifdef SYS_clock_gettime |
|
|
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
358 | # undef EV_USE_MONOTONIC |
|
|
359 | # define EV_USE_MONOTONIC 1 |
|
|
360 | # else |
|
|
361 | # undef EV_USE_CLOCK_SYSCALL |
|
|
362 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
363 | # endif |
285 | #endif |
364 | #endif |
286 | |
365 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
367 | |
|
|
368 | #ifdef _AIX |
|
|
369 | /* AIX has a completely broken poll.h header */ |
|
|
370 | # undef EV_USE_POLL |
|
|
371 | # define EV_USE_POLL 0 |
|
|
372 | #endif |
288 | |
373 | |
289 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
377 | #endif |
… | |
… | |
300 | # undef EV_USE_INOTIFY |
385 | # undef EV_USE_INOTIFY |
301 | # define EV_USE_INOTIFY 0 |
386 | # define EV_USE_INOTIFY 0 |
302 | #endif |
387 | #endif |
303 | |
388 | |
304 | #if !EV_USE_NANOSLEEP |
389 | #if !EV_USE_NANOSLEEP |
305 | # ifndef _WIN32 |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
306 | # include <sys/select.h> |
392 | # include <sys/select.h> |
307 | # endif |
393 | # endif |
308 | #endif |
394 | #endif |
309 | |
395 | |
310 | #if EV_USE_INOTIFY |
396 | #if EV_USE_INOTIFY |
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
397 | # include <sys/statfs.h> |
313 | # include <sys/inotify.h> |
398 | # include <sys/inotify.h> |
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
315 | # ifndef IN_DONT_FOLLOW |
400 | # ifndef IN_DONT_FOLLOW |
316 | # undef EV_USE_INOTIFY |
401 | # undef EV_USE_INOTIFY |
… | |
… | |
320 | |
405 | |
321 | #if EV_SELECT_IS_WINSOCKET |
406 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
407 | # include <winsock.h> |
323 | #endif |
408 | #endif |
324 | |
409 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
410 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
412 | # include <stdint.h> |
337 | # ifdef __cplusplus |
413 | # ifndef EFD_NONBLOCK |
338 | extern "C" { |
414 | # define EFD_NONBLOCK O_NONBLOCK |
339 | # endif |
415 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
416 | # ifndef EFD_CLOEXEC |
341 | # ifdef __cplusplus |
417 | # ifdef O_CLOEXEC |
342 | } |
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # endif |
343 | # endif |
422 | # endif |
|
|
423 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
424 | #endif |
|
|
425 | |
|
|
426 | #if EV_USE_SIGNALFD |
|
|
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
428 | # include <stdint.h> |
|
|
429 | # ifndef SFD_NONBLOCK |
|
|
430 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
431 | # endif |
|
|
432 | # ifndef SFD_CLOEXEC |
|
|
433 | # ifdef O_CLOEXEC |
|
|
434 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
435 | # else |
|
|
436 | # define SFD_CLOEXEC 02000000 |
|
|
437 | # endif |
|
|
438 | # endif |
|
|
439 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
440 | |
|
|
441 | struct signalfd_siginfo |
|
|
442 | { |
|
|
443 | uint32_t ssi_signo; |
|
|
444 | char pad[128 - sizeof (uint32_t)]; |
|
|
445 | }; |
344 | #endif |
446 | #endif |
345 | |
447 | |
346 | /**/ |
448 | /**/ |
347 | |
449 | |
348 | #if EV_VERIFY >= 3 |
450 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
350 | #else |
452 | #else |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
453 | # define EV_FREQUENT_CHECK do { } while (0) |
352 | #endif |
454 | #endif |
353 | |
455 | |
354 | /* |
456 | /* |
355 | * This is used to avoid floating point rounding problems. |
457 | * This is used to work around floating point rounding problems. |
356 | * It is added to ev_rt_now when scheduling periodics |
|
|
357 | * to ensure progress, time-wise, even when rounding |
|
|
358 | * errors are against us. |
|
|
359 | * This value is good at least till the year 4000. |
458 | * This value is good at least till the year 4000. |
360 | * Better solutions welcome. |
|
|
361 | */ |
459 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
460 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
461 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
363 | |
462 | |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
463 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
465 | |
|
|
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
367 | |
468 | |
368 | #if __GNUC__ >= 4 |
469 | #if __GNUC__ >= 4 |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
370 | # define noinline __attribute__ ((noinline)) |
471 | # define noinline __attribute__ ((noinline)) |
371 | #else |
472 | #else |
… | |
… | |
378 | |
479 | |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
381 | #define inline_size static inline |
482 | #define inline_size static inline |
382 | |
483 | |
383 | #if EV_MINIMAL |
484 | #if EV_FEATURE_CODE |
|
|
485 | # define inline_speed static inline |
|
|
486 | #else |
384 | # define inline_speed static noinline |
487 | # define inline_speed static noinline |
|
|
488 | #endif |
|
|
489 | |
|
|
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
491 | |
|
|
492 | #if EV_MINPRI == EV_MAXPRI |
|
|
493 | # define ABSPRI(w) (((W)w), 0) |
385 | #else |
494 | #else |
386 | # define inline_speed static inline |
|
|
387 | #endif |
|
|
388 | |
|
|
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
495 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
496 | #endif |
391 | |
497 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
498 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
499 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
500 | |
395 | typedef ev_watcher *W; |
501 | typedef ev_watcher *W; |
… | |
… | |
399 | #define ev_active(w) ((W)(w))->active |
505 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
506 | #define ev_at(w) ((WT)(w))->at |
401 | |
507 | |
402 | #if EV_USE_REALTIME |
508 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
509 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
510 | /* giving it a reasonably high chance of working on typical architectures */ |
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
511 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
406 | #endif |
512 | #endif |
407 | |
513 | |
408 | #if EV_USE_MONOTONIC |
514 | #if EV_USE_MONOTONIC |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
515 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
410 | #endif |
516 | #endif |
411 | |
517 | |
|
|
518 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
519 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
520 | #endif |
|
|
521 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
522 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
523 | #endif |
|
|
524 | #ifndef EV_WIN32_CLOSE_FD |
|
|
525 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
526 | #endif |
|
|
527 | |
412 | #ifdef _WIN32 |
528 | #ifdef _WIN32 |
413 | # include "ev_win32.c" |
529 | # include "ev_win32.c" |
414 | #endif |
530 | #endif |
415 | |
531 | |
416 | /*****************************************************************************/ |
532 | /*****************************************************************************/ |
|
|
533 | |
|
|
534 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
535 | |
|
|
536 | #if EV_USE_FLOOR |
|
|
537 | # include <math.h> |
|
|
538 | # define ev_floor(v) floor (v) |
|
|
539 | #else |
|
|
540 | |
|
|
541 | #include <float.h> |
|
|
542 | |
|
|
543 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
544 | static ev_tstamp noinline |
|
|
545 | ev_floor (ev_tstamp v) |
|
|
546 | { |
|
|
547 | /* the choice of shift factor is not terribly important */ |
|
|
548 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
549 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
550 | #else |
|
|
551 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
552 | #endif |
|
|
553 | |
|
|
554 | /* argument too large for an unsigned long? */ |
|
|
555 | if (expect_false (v >= shift)) |
|
|
556 | { |
|
|
557 | ev_tstamp f; |
|
|
558 | |
|
|
559 | if (v == v - 1.) |
|
|
560 | return v; /* very large number */ |
|
|
561 | |
|
|
562 | f = shift * ev_floor (v * (1. / shift)); |
|
|
563 | return f + ev_floor (v - f); |
|
|
564 | } |
|
|
565 | |
|
|
566 | /* special treatment for negative args? */ |
|
|
567 | if (expect_false (v < 0.)) |
|
|
568 | { |
|
|
569 | ev_tstamp f = -ev_floor (-v); |
|
|
570 | |
|
|
571 | return f - (f == v ? 0 : 1); |
|
|
572 | } |
|
|
573 | |
|
|
574 | /* fits into an unsigned long */ |
|
|
575 | return (unsigned long)v; |
|
|
576 | } |
|
|
577 | |
|
|
578 | #endif |
|
|
579 | |
|
|
580 | /*****************************************************************************/ |
|
|
581 | |
|
|
582 | #ifdef __linux |
|
|
583 | # include <sys/utsname.h> |
|
|
584 | #endif |
|
|
585 | |
|
|
586 | static unsigned int noinline |
|
|
587 | ev_linux_version (void) |
|
|
588 | { |
|
|
589 | #ifdef __linux |
|
|
590 | unsigned int v = 0; |
|
|
591 | struct utsname buf; |
|
|
592 | int i; |
|
|
593 | char *p = buf.release; |
|
|
594 | |
|
|
595 | if (uname (&buf)) |
|
|
596 | return 0; |
|
|
597 | |
|
|
598 | for (i = 3+1; --i; ) |
|
|
599 | { |
|
|
600 | unsigned int c = 0; |
|
|
601 | |
|
|
602 | for (;;) |
|
|
603 | { |
|
|
604 | if (*p >= '0' && *p <= '9') |
|
|
605 | c = c * 10 + *p++ - '0'; |
|
|
606 | else |
|
|
607 | { |
|
|
608 | p += *p == '.'; |
|
|
609 | break; |
|
|
610 | } |
|
|
611 | } |
|
|
612 | |
|
|
613 | v = (v << 8) | c; |
|
|
614 | } |
|
|
615 | |
|
|
616 | return v; |
|
|
617 | #else |
|
|
618 | return 0; |
|
|
619 | #endif |
|
|
620 | } |
|
|
621 | |
|
|
622 | /*****************************************************************************/ |
|
|
623 | |
|
|
624 | #if EV_AVOID_STDIO |
|
|
625 | static void noinline |
|
|
626 | ev_printerr (const char *msg) |
|
|
627 | { |
|
|
628 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
629 | } |
|
|
630 | #endif |
417 | |
631 | |
418 | static void (*syserr_cb)(const char *msg); |
632 | static void (*syserr_cb)(const char *msg); |
419 | |
633 | |
420 | void |
634 | void |
421 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
431 | |
645 | |
432 | if (syserr_cb) |
646 | if (syserr_cb) |
433 | syserr_cb (msg); |
647 | syserr_cb (msg); |
434 | else |
648 | else |
435 | { |
649 | { |
|
|
650 | #if EV_AVOID_STDIO |
|
|
651 | ev_printerr (msg); |
|
|
652 | ev_printerr (": "); |
|
|
653 | ev_printerr (strerror (errno)); |
|
|
654 | ev_printerr ("\n"); |
|
|
655 | #else |
436 | perror (msg); |
656 | perror (msg); |
|
|
657 | #endif |
437 | abort (); |
658 | abort (); |
438 | } |
659 | } |
439 | } |
660 | } |
440 | |
661 | |
441 | static void * |
662 | static void * |
442 | ev_realloc_emul (void *ptr, long size) |
663 | ev_realloc_emul (void *ptr, long size) |
443 | { |
664 | { |
|
|
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
444 | /* some systems, notably openbsd and darwin, fail to properly |
668 | /* some systems, notably openbsd and darwin, fail to properly |
445 | * implement realloc (x, 0) (as required by both ansi c-98 and |
669 | * implement realloc (x, 0) (as required by both ansi c-89 and |
446 | * the single unix specification, so work around them here. |
670 | * the single unix specification, so work around them here. |
447 | */ |
671 | */ |
448 | |
672 | |
449 | if (size) |
673 | if (size) |
450 | return realloc (ptr, size); |
674 | return realloc (ptr, size); |
451 | |
675 | |
452 | free (ptr); |
676 | free (ptr); |
453 | return 0; |
677 | return 0; |
|
|
678 | #endif |
454 | } |
679 | } |
455 | |
680 | |
456 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
457 | |
682 | |
458 | void |
683 | void |
… | |
… | |
466 | { |
691 | { |
467 | ptr = alloc (ptr, size); |
692 | ptr = alloc (ptr, size); |
468 | |
693 | |
469 | if (!ptr && size) |
694 | if (!ptr && size) |
470 | { |
695 | { |
|
|
696 | #if EV_AVOID_STDIO |
|
|
697 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
698 | #else |
471 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
699 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
700 | #endif |
472 | abort (); |
701 | abort (); |
473 | } |
702 | } |
474 | |
703 | |
475 | return ptr; |
704 | return ptr; |
476 | } |
705 | } |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
707 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
708 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
709 | |
481 | /*****************************************************************************/ |
710 | /*****************************************************************************/ |
482 | |
711 | |
|
|
712 | /* set in reify when reification needed */ |
|
|
713 | #define EV_ANFD_REIFY 1 |
|
|
714 | |
483 | /* file descriptor info structure */ |
715 | /* file descriptor info structure */ |
484 | typedef struct |
716 | typedef struct |
485 | { |
717 | { |
486 | WL head; |
718 | WL head; |
487 | unsigned char events; /* the events watched for */ |
719 | unsigned char events; /* the events watched for */ |
488 | unsigned char reify; /* flag set when this ANFD needs reification */ |
720 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
489 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
721 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
490 | unsigned char unused; |
722 | unsigned char unused; |
491 | #if EV_USE_EPOLL |
723 | #if EV_USE_EPOLL |
492 | unsigned int egen; /* generation counter to counter epoll bugs */ |
724 | unsigned int egen; /* generation counter to counter epoll bugs */ |
493 | #endif |
725 | #endif |
494 | #if EV_SELECT_IS_WINSOCKET |
726 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
495 | SOCKET handle; |
727 | SOCKET handle; |
|
|
728 | #endif |
|
|
729 | #if EV_USE_IOCP |
|
|
730 | OVERLAPPED or, ow; |
496 | #endif |
731 | #endif |
497 | } ANFD; |
732 | } ANFD; |
498 | |
733 | |
499 | /* stores the pending event set for a given watcher */ |
734 | /* stores the pending event set for a given watcher */ |
500 | typedef struct |
735 | typedef struct |
… | |
… | |
555 | |
790 | |
556 | static int ev_default_loop_ptr; |
791 | static int ev_default_loop_ptr; |
557 | |
792 | |
558 | #endif |
793 | #endif |
559 | |
794 | |
|
|
795 | #if EV_FEATURE_API |
|
|
796 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
797 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
798 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
799 | #else |
|
|
800 | # define EV_RELEASE_CB (void)0 |
|
|
801 | # define EV_ACQUIRE_CB (void)0 |
|
|
802 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
803 | #endif |
|
|
804 | |
|
|
805 | #define EVBREAK_RECURSE 0x80 |
|
|
806 | |
560 | /*****************************************************************************/ |
807 | /*****************************************************************************/ |
561 | |
808 | |
|
|
809 | #ifndef EV_HAVE_EV_TIME |
562 | ev_tstamp |
810 | ev_tstamp |
563 | ev_time (void) |
811 | ev_time (void) |
564 | { |
812 | { |
565 | #if EV_USE_REALTIME |
813 | #if EV_USE_REALTIME |
566 | if (expect_true (have_realtime)) |
814 | if (expect_true (have_realtime)) |
… | |
… | |
573 | |
821 | |
574 | struct timeval tv; |
822 | struct timeval tv; |
575 | gettimeofday (&tv, 0); |
823 | gettimeofday (&tv, 0); |
576 | return tv.tv_sec + tv.tv_usec * 1e-6; |
824 | return tv.tv_sec + tv.tv_usec * 1e-6; |
577 | } |
825 | } |
|
|
826 | #endif |
578 | |
827 | |
579 | inline_size ev_tstamp |
828 | inline_size ev_tstamp |
580 | get_clock (void) |
829 | get_clock (void) |
581 | { |
830 | { |
582 | #if EV_USE_MONOTONIC |
831 | #if EV_USE_MONOTONIC |
… | |
… | |
605 | if (delay > 0.) |
854 | if (delay > 0.) |
606 | { |
855 | { |
607 | #if EV_USE_NANOSLEEP |
856 | #if EV_USE_NANOSLEEP |
608 | struct timespec ts; |
857 | struct timespec ts; |
609 | |
858 | |
610 | ts.tv_sec = (time_t)delay; |
859 | EV_TS_SET (ts, delay); |
611 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
612 | |
|
|
613 | nanosleep (&ts, 0); |
860 | nanosleep (&ts, 0); |
614 | #elif defined(_WIN32) |
861 | #elif defined(_WIN32) |
615 | Sleep ((unsigned long)(delay * 1e3)); |
862 | Sleep ((unsigned long)(delay * 1e3)); |
616 | #else |
863 | #else |
617 | struct timeval tv; |
864 | struct timeval tv; |
618 | |
865 | |
619 | tv.tv_sec = (time_t)delay; |
|
|
620 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
621 | |
|
|
622 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
623 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
867 | /* something not guaranteed by newer posix versions, but guaranteed */ |
624 | /* by older ones */ |
868 | /* by older ones */ |
|
|
869 | EV_TV_SET (tv, delay); |
625 | select (0, 0, 0, 0, &tv); |
870 | select (0, 0, 0, 0, &tv); |
626 | #endif |
871 | #endif |
627 | } |
872 | } |
628 | } |
873 | } |
629 | |
874 | |
630 | /*****************************************************************************/ |
875 | /*****************************************************************************/ |
631 | |
876 | |
632 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
877 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
633 | |
878 | |
634 | /* find a suitable new size for the given array, */ |
879 | /* find a suitable new size for the given array, */ |
635 | /* hopefully by rounding to a ncie-to-malloc size */ |
880 | /* hopefully by rounding to a nice-to-malloc size */ |
636 | inline_size int |
881 | inline_size int |
637 | array_nextsize (int elem, int cur, int cnt) |
882 | array_nextsize (int elem, int cur, int cnt) |
638 | { |
883 | { |
639 | int ncur = cur + 1; |
884 | int ncur = cur + 1; |
640 | |
885 | |
… | |
… | |
736 | } |
981 | } |
737 | |
982 | |
738 | /*****************************************************************************/ |
983 | /*****************************************************************************/ |
739 | |
984 | |
740 | inline_speed void |
985 | inline_speed void |
741 | fd_event (EV_P_ int fd, int revents) |
986 | fd_event_nocheck (EV_P_ int fd, int revents) |
742 | { |
987 | { |
743 | ANFD *anfd = anfds + fd; |
988 | ANFD *anfd = anfds + fd; |
744 | ev_io *w; |
989 | ev_io *w; |
745 | |
990 | |
746 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
991 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
750 | if (ev) |
995 | if (ev) |
751 | ev_feed_event (EV_A_ (W)w, ev); |
996 | ev_feed_event (EV_A_ (W)w, ev); |
752 | } |
997 | } |
753 | } |
998 | } |
754 | |
999 | |
|
|
1000 | /* do not submit kernel events for fds that have reify set */ |
|
|
1001 | /* because that means they changed while we were polling for new events */ |
|
|
1002 | inline_speed void |
|
|
1003 | fd_event (EV_P_ int fd, int revents) |
|
|
1004 | { |
|
|
1005 | ANFD *anfd = anfds + fd; |
|
|
1006 | |
|
|
1007 | if (expect_true (!anfd->reify)) |
|
|
1008 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1009 | } |
|
|
1010 | |
755 | void |
1011 | void |
756 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1012 | ev_feed_fd_event (EV_P_ int fd, int revents) |
757 | { |
1013 | { |
758 | if (fd >= 0 && fd < anfdmax) |
1014 | if (fd >= 0 && fd < anfdmax) |
759 | fd_event (EV_A_ fd, revents); |
1015 | fd_event_nocheck (EV_A_ fd, revents); |
760 | } |
1016 | } |
761 | |
1017 | |
762 | /* make sure the external fd watch events are in-sync */ |
1018 | /* make sure the external fd watch events are in-sync */ |
763 | /* with the kernel/libev internal state */ |
1019 | /* with the kernel/libev internal state */ |
764 | inline_size void |
1020 | inline_size void |
765 | fd_reify (EV_P) |
1021 | fd_reify (EV_P) |
766 | { |
1022 | { |
767 | int i; |
1023 | int i; |
768 | |
1024 | |
|
|
1025 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1026 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1027 | { |
|
|
1028 | int fd = fdchanges [i]; |
|
|
1029 | ANFD *anfd = anfds + fd; |
|
|
1030 | |
|
|
1031 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1032 | { |
|
|
1033 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1034 | |
|
|
1035 | if (handle != anfd->handle) |
|
|
1036 | { |
|
|
1037 | unsigned long arg; |
|
|
1038 | |
|
|
1039 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1040 | |
|
|
1041 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1042 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1043 | anfd->events = 0; |
|
|
1044 | anfd->handle = handle; |
|
|
1045 | } |
|
|
1046 | } |
|
|
1047 | } |
|
|
1048 | #endif |
|
|
1049 | |
769 | for (i = 0; i < fdchangecnt; ++i) |
1050 | for (i = 0; i < fdchangecnt; ++i) |
770 | { |
1051 | { |
771 | int fd = fdchanges [i]; |
1052 | int fd = fdchanges [i]; |
772 | ANFD *anfd = anfds + fd; |
1053 | ANFD *anfd = anfds + fd; |
773 | ev_io *w; |
1054 | ev_io *w; |
774 | |
1055 | |
775 | unsigned char events = 0; |
1056 | unsigned char o_events = anfd->events; |
|
|
1057 | unsigned char o_reify = anfd->reify; |
776 | |
1058 | |
777 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1059 | anfd->reify = 0; |
778 | events |= (unsigned char)w->events; |
|
|
779 | |
1060 | |
780 | #if EV_SELECT_IS_WINSOCKET |
1061 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
781 | if (events) |
|
|
782 | { |
1062 | { |
783 | unsigned long arg; |
1063 | anfd->events = 0; |
784 | #ifdef EV_FD_TO_WIN32_HANDLE |
1064 | |
785 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1065 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
786 | #else |
1066 | anfd->events |= (unsigned char)w->events; |
787 | anfd->handle = _get_osfhandle (fd); |
1067 | |
788 | #endif |
1068 | if (o_events != anfd->events) |
789 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1069 | o_reify = EV__IOFDSET; /* actually |= */ |
790 | } |
1070 | } |
791 | #endif |
|
|
792 | |
1071 | |
793 | { |
1072 | if (o_reify & EV__IOFDSET) |
794 | unsigned char o_events = anfd->events; |
|
|
795 | unsigned char o_reify = anfd->reify; |
|
|
796 | |
|
|
797 | anfd->reify = 0; |
|
|
798 | anfd->events = events; |
|
|
799 | |
|
|
800 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
801 | backend_modify (EV_A_ fd, o_events, events); |
1073 | backend_modify (EV_A_ fd, o_events, anfd->events); |
802 | } |
|
|
803 | } |
1074 | } |
804 | |
1075 | |
805 | fdchangecnt = 0; |
1076 | fdchangecnt = 0; |
806 | } |
1077 | } |
807 | |
1078 | |
… | |
… | |
831 | ev_io_stop (EV_A_ w); |
1102 | ev_io_stop (EV_A_ w); |
832 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1103 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
833 | } |
1104 | } |
834 | } |
1105 | } |
835 | |
1106 | |
836 | /* check whether the given fd is atcually valid, for error recovery */ |
1107 | /* check whether the given fd is actually valid, for error recovery */ |
837 | inline_size int |
1108 | inline_size int |
838 | fd_valid (int fd) |
1109 | fd_valid (int fd) |
839 | { |
1110 | { |
840 | #ifdef _WIN32 |
1111 | #ifdef _WIN32 |
841 | return _get_osfhandle (fd) != -1; |
1112 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
842 | #else |
1113 | #else |
843 | return fcntl (fd, F_GETFD) != -1; |
1114 | return fcntl (fd, F_GETFD) != -1; |
844 | #endif |
1115 | #endif |
845 | } |
1116 | } |
846 | |
1117 | |
… | |
… | |
864 | |
1135 | |
865 | for (fd = anfdmax; fd--; ) |
1136 | for (fd = anfdmax; fd--; ) |
866 | if (anfds [fd].events) |
1137 | if (anfds [fd].events) |
867 | { |
1138 | { |
868 | fd_kill (EV_A_ fd); |
1139 | fd_kill (EV_A_ fd); |
869 | return; |
1140 | break; |
870 | } |
1141 | } |
871 | } |
1142 | } |
872 | |
1143 | |
873 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1144 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
874 | static void noinline |
1145 | static void noinline |
… | |
… | |
879 | for (fd = 0; fd < anfdmax; ++fd) |
1150 | for (fd = 0; fd < anfdmax; ++fd) |
880 | if (anfds [fd].events) |
1151 | if (anfds [fd].events) |
881 | { |
1152 | { |
882 | anfds [fd].events = 0; |
1153 | anfds [fd].events = 0; |
883 | anfds [fd].emask = 0; |
1154 | anfds [fd].emask = 0; |
884 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1155 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
885 | } |
1156 | } |
886 | } |
1157 | } |
887 | |
1158 | |
|
|
1159 | /* used to prepare libev internal fd's */ |
|
|
1160 | /* this is not fork-safe */ |
|
|
1161 | inline_speed void |
|
|
1162 | fd_intern (int fd) |
|
|
1163 | { |
|
|
1164 | #ifdef _WIN32 |
|
|
1165 | unsigned long arg = 1; |
|
|
1166 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1167 | #else |
|
|
1168 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1169 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1170 | #endif |
|
|
1171 | } |
|
|
1172 | |
888 | /*****************************************************************************/ |
1173 | /*****************************************************************************/ |
889 | |
1174 | |
890 | /* |
1175 | /* |
891 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1176 | * the heap functions want a real array index. array index 0 is guaranteed to not |
892 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1177 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
893 | * the branching factor of the d-tree. |
1178 | * the branching factor of the d-tree. |
894 | */ |
1179 | */ |
895 | |
1180 | |
896 | /* |
1181 | /* |
… | |
… | |
964 | |
1249 | |
965 | for (;;) |
1250 | for (;;) |
966 | { |
1251 | { |
967 | int c = k << 1; |
1252 | int c = k << 1; |
968 | |
1253 | |
969 | if (c > N + HEAP0 - 1) |
1254 | if (c >= N + HEAP0) |
970 | break; |
1255 | break; |
971 | |
1256 | |
972 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1257 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
973 | ? 1 : 0; |
1258 | ? 1 : 0; |
974 | |
1259 | |
… | |
… | |
1010 | |
1295 | |
1011 | /* move an element suitably so it is in a correct place */ |
1296 | /* move an element suitably so it is in a correct place */ |
1012 | inline_size void |
1297 | inline_size void |
1013 | adjustheap (ANHE *heap, int N, int k) |
1298 | adjustheap (ANHE *heap, int N, int k) |
1014 | { |
1299 | { |
1015 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1300 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1016 | upheap (heap, k); |
1301 | upheap (heap, k); |
1017 | else |
1302 | else |
1018 | downheap (heap, N, k); |
1303 | downheap (heap, N, k); |
1019 | } |
1304 | } |
1020 | |
1305 | |
… | |
… | |
1033 | /*****************************************************************************/ |
1318 | /*****************************************************************************/ |
1034 | |
1319 | |
1035 | /* associate signal watchers to a signal signal */ |
1320 | /* associate signal watchers to a signal signal */ |
1036 | typedef struct |
1321 | typedef struct |
1037 | { |
1322 | { |
|
|
1323 | EV_ATOMIC_T pending; |
|
|
1324 | #if EV_MULTIPLICITY |
|
|
1325 | EV_P; |
|
|
1326 | #endif |
1038 | WL head; |
1327 | WL head; |
1039 | EV_ATOMIC_T gotsig; |
|
|
1040 | } ANSIG; |
1328 | } ANSIG; |
1041 | |
1329 | |
1042 | static ANSIG *signals; |
1330 | static ANSIG signals [EV_NSIG - 1]; |
1043 | static int signalmax; |
|
|
1044 | |
|
|
1045 | static EV_ATOMIC_T gotsig; |
|
|
1046 | |
1331 | |
1047 | /*****************************************************************************/ |
1332 | /*****************************************************************************/ |
1048 | |
1333 | |
1049 | /* used to prepare libev internal fd's */ |
1334 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1050 | /* this is not fork-safe */ |
|
|
1051 | inline_speed void |
|
|
1052 | fd_intern (int fd) |
|
|
1053 | { |
|
|
1054 | #ifdef _WIN32 |
|
|
1055 | unsigned long arg = 1; |
|
|
1056 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1057 | #else |
|
|
1058 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1059 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1060 | #endif |
|
|
1061 | } |
|
|
1062 | |
1335 | |
1063 | static void noinline |
1336 | static void noinline |
1064 | evpipe_init (EV_P) |
1337 | evpipe_init (EV_P) |
1065 | { |
1338 | { |
1066 | if (!ev_is_active (&pipe_w)) |
1339 | if (!ev_is_active (&pipe_w)) |
1067 | { |
1340 | { |
1068 | #if EV_USE_EVENTFD |
1341 | # if EV_USE_EVENTFD |
|
|
1342 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1343 | if (evfd < 0 && errno == EINVAL) |
1069 | if ((evfd = eventfd (0, 0)) >= 0) |
1344 | evfd = eventfd (0, 0); |
|
|
1345 | |
|
|
1346 | if (evfd >= 0) |
1070 | { |
1347 | { |
1071 | evpipe [0] = -1; |
1348 | evpipe [0] = -1; |
1072 | fd_intern (evfd); |
1349 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1073 | ev_io_set (&pipe_w, evfd, EV_READ); |
1350 | ev_io_set (&pipe_w, evfd, EV_READ); |
1074 | } |
1351 | } |
1075 | else |
1352 | else |
1076 | #endif |
1353 | # endif |
1077 | { |
1354 | { |
1078 | while (pipe (evpipe)) |
1355 | while (pipe (evpipe)) |
1079 | ev_syserr ("(libev) error creating signal/async pipe"); |
1356 | ev_syserr ("(libev) error creating signal/async pipe"); |
1080 | |
1357 | |
1081 | fd_intern (evpipe [0]); |
1358 | fd_intern (evpipe [0]); |
… | |
… | |
1092 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1369 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1093 | { |
1370 | { |
1094 | if (!*flag) |
1371 | if (!*flag) |
1095 | { |
1372 | { |
1096 | int old_errno = errno; /* save errno because write might clobber it */ |
1373 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1374 | char dummy; |
1097 | |
1375 | |
1098 | *flag = 1; |
1376 | *flag = 1; |
1099 | |
1377 | |
1100 | #if EV_USE_EVENTFD |
1378 | #if EV_USE_EVENTFD |
1101 | if (evfd >= 0) |
1379 | if (evfd >= 0) |
… | |
… | |
1103 | uint64_t counter = 1; |
1381 | uint64_t counter = 1; |
1104 | write (evfd, &counter, sizeof (uint64_t)); |
1382 | write (evfd, &counter, sizeof (uint64_t)); |
1105 | } |
1383 | } |
1106 | else |
1384 | else |
1107 | #endif |
1385 | #endif |
|
|
1386 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1387 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1388 | /* so when you think this write should be a send instead, please find out */ |
|
|
1389 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1390 | /* tell me. thank you. */ |
1108 | write (evpipe [1], &old_errno, 1); |
1391 | write (evpipe [1], &dummy, 1); |
1109 | |
1392 | |
1110 | errno = old_errno; |
1393 | errno = old_errno; |
1111 | } |
1394 | } |
1112 | } |
1395 | } |
1113 | |
1396 | |
1114 | /* called whenever the libev signal pipe */ |
1397 | /* called whenever the libev signal pipe */ |
1115 | /* got some events (signal, async) */ |
1398 | /* got some events (signal, async) */ |
1116 | static void |
1399 | static void |
1117 | pipecb (EV_P_ ev_io *iow, int revents) |
1400 | pipecb (EV_P_ ev_io *iow, int revents) |
1118 | { |
1401 | { |
|
|
1402 | int i; |
|
|
1403 | |
1119 | #if EV_USE_EVENTFD |
1404 | #if EV_USE_EVENTFD |
1120 | if (evfd >= 0) |
1405 | if (evfd >= 0) |
1121 | { |
1406 | { |
1122 | uint64_t counter; |
1407 | uint64_t counter; |
1123 | read (evfd, &counter, sizeof (uint64_t)); |
1408 | read (evfd, &counter, sizeof (uint64_t)); |
1124 | } |
1409 | } |
1125 | else |
1410 | else |
1126 | #endif |
1411 | #endif |
1127 | { |
1412 | { |
1128 | char dummy; |
1413 | char dummy; |
|
|
1414 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1129 | read (evpipe [0], &dummy, 1); |
1415 | read (evpipe [0], &dummy, 1); |
1130 | } |
1416 | } |
1131 | |
1417 | |
1132 | if (gotsig && ev_is_default_loop (EV_A)) |
1418 | #if EV_SIGNAL_ENABLE |
1133 | { |
1419 | if (sig_pending) |
1134 | int signum; |
1420 | { |
1135 | gotsig = 0; |
1421 | sig_pending = 0; |
1136 | |
1422 | |
1137 | for (signum = signalmax; signum--; ) |
1423 | for (i = EV_NSIG - 1; i--; ) |
1138 | if (signals [signum].gotsig) |
1424 | if (expect_false (signals [i].pending)) |
1139 | ev_feed_signal_event (EV_A_ signum + 1); |
1425 | ev_feed_signal_event (EV_A_ i + 1); |
1140 | } |
1426 | } |
|
|
1427 | #endif |
1141 | |
1428 | |
1142 | #if EV_ASYNC_ENABLE |
1429 | #if EV_ASYNC_ENABLE |
1143 | if (gotasync) |
1430 | if (async_pending) |
1144 | { |
1431 | { |
1145 | int i; |
1432 | async_pending = 0; |
1146 | gotasync = 0; |
|
|
1147 | |
1433 | |
1148 | for (i = asynccnt; i--; ) |
1434 | for (i = asynccnt; i--; ) |
1149 | if (asyncs [i]->sent) |
1435 | if (asyncs [i]->sent) |
1150 | { |
1436 | { |
1151 | asyncs [i]->sent = 0; |
1437 | asyncs [i]->sent = 0; |
… | |
… | |
1155 | #endif |
1441 | #endif |
1156 | } |
1442 | } |
1157 | |
1443 | |
1158 | /*****************************************************************************/ |
1444 | /*****************************************************************************/ |
1159 | |
1445 | |
|
|
1446 | void |
|
|
1447 | ev_feed_signal (int signum) |
|
|
1448 | { |
|
|
1449 | #if EV_MULTIPLICITY |
|
|
1450 | EV_P = signals [signum - 1].loop; |
|
|
1451 | |
|
|
1452 | if (!EV_A) |
|
|
1453 | return; |
|
|
1454 | #endif |
|
|
1455 | |
|
|
1456 | signals [signum - 1].pending = 1; |
|
|
1457 | evpipe_write (EV_A_ &sig_pending); |
|
|
1458 | } |
|
|
1459 | |
1160 | static void |
1460 | static void |
1161 | ev_sighandler (int signum) |
1461 | ev_sighandler (int signum) |
1162 | { |
1462 | { |
1163 | #if EV_MULTIPLICITY |
|
|
1164 | struct ev_loop *loop = &default_loop_struct; |
|
|
1165 | #endif |
|
|
1166 | |
|
|
1167 | #if _WIN32 |
1463 | #ifdef _WIN32 |
1168 | signal (signum, ev_sighandler); |
1464 | signal (signum, ev_sighandler); |
1169 | #endif |
1465 | #endif |
1170 | |
1466 | |
1171 | signals [signum - 1].gotsig = 1; |
1467 | ev_feed_signal (signum); |
1172 | evpipe_write (EV_A_ &gotsig); |
|
|
1173 | } |
1468 | } |
1174 | |
1469 | |
1175 | void noinline |
1470 | void noinline |
1176 | ev_feed_signal_event (EV_P_ int signum) |
1471 | ev_feed_signal_event (EV_P_ int signum) |
1177 | { |
1472 | { |
1178 | WL w; |
1473 | WL w; |
1179 | |
1474 | |
|
|
1475 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1476 | return; |
|
|
1477 | |
|
|
1478 | --signum; |
|
|
1479 | |
1180 | #if EV_MULTIPLICITY |
1480 | #if EV_MULTIPLICITY |
1181 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1481 | /* it is permissible to try to feed a signal to the wrong loop */ |
1182 | #endif |
1482 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1183 | |
1483 | |
1184 | --signum; |
1484 | if (expect_false (signals [signum].loop != EV_A)) |
1185 | |
|
|
1186 | if (signum < 0 || signum >= signalmax) |
|
|
1187 | return; |
1485 | return; |
|
|
1486 | #endif |
1188 | |
1487 | |
1189 | signals [signum].gotsig = 0; |
1488 | signals [signum].pending = 0; |
1190 | |
1489 | |
1191 | for (w = signals [signum].head; w; w = w->next) |
1490 | for (w = signals [signum].head; w; w = w->next) |
1192 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1491 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1193 | } |
1492 | } |
1194 | |
1493 | |
|
|
1494 | #if EV_USE_SIGNALFD |
|
|
1495 | static void |
|
|
1496 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1497 | { |
|
|
1498 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1499 | |
|
|
1500 | for (;;) |
|
|
1501 | { |
|
|
1502 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1503 | |
|
|
1504 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1505 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1506 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1507 | |
|
|
1508 | if (res < (ssize_t)sizeof (si)) |
|
|
1509 | break; |
|
|
1510 | } |
|
|
1511 | } |
|
|
1512 | #endif |
|
|
1513 | |
|
|
1514 | #endif |
|
|
1515 | |
1195 | /*****************************************************************************/ |
1516 | /*****************************************************************************/ |
1196 | |
1517 | |
|
|
1518 | #if EV_CHILD_ENABLE |
1197 | static WL childs [EV_PID_HASHSIZE]; |
1519 | static WL childs [EV_PID_HASHSIZE]; |
1198 | |
|
|
1199 | #ifndef _WIN32 |
|
|
1200 | |
1520 | |
1201 | static ev_signal childev; |
1521 | static ev_signal childev; |
1202 | |
1522 | |
1203 | #ifndef WIFCONTINUED |
1523 | #ifndef WIFCONTINUED |
1204 | # define WIFCONTINUED(status) 0 |
1524 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1209 | child_reap (EV_P_ int chain, int pid, int status) |
1529 | child_reap (EV_P_ int chain, int pid, int status) |
1210 | { |
1530 | { |
1211 | ev_child *w; |
1531 | ev_child *w; |
1212 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1532 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1213 | |
1533 | |
1214 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1534 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1215 | { |
1535 | { |
1216 | if ((w->pid == pid || !w->pid) |
1536 | if ((w->pid == pid || !w->pid) |
1217 | && (!traced || (w->flags & 1))) |
1537 | && (!traced || (w->flags & 1))) |
1218 | { |
1538 | { |
1219 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1539 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1244 | /* make sure we are called again until all children have been reaped */ |
1564 | /* make sure we are called again until all children have been reaped */ |
1245 | /* we need to do it this way so that the callback gets called before we continue */ |
1565 | /* we need to do it this way so that the callback gets called before we continue */ |
1246 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1566 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1247 | |
1567 | |
1248 | child_reap (EV_A_ pid, pid, status); |
1568 | child_reap (EV_A_ pid, pid, status); |
1249 | if (EV_PID_HASHSIZE > 1) |
1569 | if ((EV_PID_HASHSIZE) > 1) |
1250 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1570 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1251 | } |
1571 | } |
1252 | |
1572 | |
1253 | #endif |
1573 | #endif |
1254 | |
1574 | |
1255 | /*****************************************************************************/ |
1575 | /*****************************************************************************/ |
1256 | |
1576 | |
|
|
1577 | #if EV_USE_IOCP |
|
|
1578 | # include "ev_iocp.c" |
|
|
1579 | #endif |
1257 | #if EV_USE_PORT |
1580 | #if EV_USE_PORT |
1258 | # include "ev_port.c" |
1581 | # include "ev_port.c" |
1259 | #endif |
1582 | #endif |
1260 | #if EV_USE_KQUEUE |
1583 | #if EV_USE_KQUEUE |
1261 | # include "ev_kqueue.c" |
1584 | # include "ev_kqueue.c" |
… | |
… | |
1321 | #ifdef __APPLE__ |
1644 | #ifdef __APPLE__ |
1322 | /* only select works correctly on that "unix-certified" platform */ |
1645 | /* only select works correctly on that "unix-certified" platform */ |
1323 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1646 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1324 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1647 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1325 | #endif |
1648 | #endif |
|
|
1649 | #ifdef __FreeBSD__ |
|
|
1650 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1651 | #endif |
1326 | |
1652 | |
1327 | return flags; |
1653 | return flags; |
1328 | } |
1654 | } |
1329 | |
1655 | |
1330 | unsigned int |
1656 | unsigned int |
1331 | ev_embeddable_backends (void) |
1657 | ev_embeddable_backends (void) |
1332 | { |
1658 | { |
1333 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1659 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1334 | |
1660 | |
1335 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1661 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1336 | /* please fix it and tell me how to detect the fix */ |
1662 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1337 | flags &= ~EVBACKEND_EPOLL; |
1663 | flags &= ~EVBACKEND_EPOLL; |
1338 | |
1664 | |
1339 | return flags; |
1665 | return flags; |
1340 | } |
1666 | } |
1341 | |
1667 | |
1342 | unsigned int |
1668 | unsigned int |
1343 | ev_backend (EV_P) |
1669 | ev_backend (EV_P) |
1344 | { |
1670 | { |
1345 | return backend; |
1671 | return backend; |
1346 | } |
1672 | } |
1347 | |
1673 | |
|
|
1674 | #if EV_FEATURE_API |
1348 | unsigned int |
1675 | unsigned int |
1349 | ev_loop_count (EV_P) |
1676 | ev_iteration (EV_P) |
1350 | { |
1677 | { |
1351 | return loop_count; |
1678 | return loop_count; |
1352 | } |
1679 | } |
1353 | |
1680 | |
|
|
1681 | unsigned int |
|
|
1682 | ev_depth (EV_P) |
|
|
1683 | { |
|
|
1684 | return loop_depth; |
|
|
1685 | } |
|
|
1686 | |
1354 | void |
1687 | void |
1355 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1688 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1356 | { |
1689 | { |
1357 | io_blocktime = interval; |
1690 | io_blocktime = interval; |
1358 | } |
1691 | } |
… | |
… | |
1360 | void |
1693 | void |
1361 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1694 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1362 | { |
1695 | { |
1363 | timeout_blocktime = interval; |
1696 | timeout_blocktime = interval; |
1364 | } |
1697 | } |
|
|
1698 | |
|
|
1699 | void |
|
|
1700 | ev_set_userdata (EV_P_ void *data) |
|
|
1701 | { |
|
|
1702 | userdata = data; |
|
|
1703 | } |
|
|
1704 | |
|
|
1705 | void * |
|
|
1706 | ev_userdata (EV_P) |
|
|
1707 | { |
|
|
1708 | return userdata; |
|
|
1709 | } |
|
|
1710 | |
|
|
1711 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1712 | { |
|
|
1713 | invoke_cb = invoke_pending_cb; |
|
|
1714 | } |
|
|
1715 | |
|
|
1716 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1717 | { |
|
|
1718 | release_cb = release; |
|
|
1719 | acquire_cb = acquire; |
|
|
1720 | } |
|
|
1721 | #endif |
1365 | |
1722 | |
1366 | /* initialise a loop structure, must be zero-initialised */ |
1723 | /* initialise a loop structure, must be zero-initialised */ |
1367 | static void noinline |
1724 | static void noinline |
1368 | loop_init (EV_P_ unsigned int flags) |
1725 | loop_init (EV_P_ unsigned int flags) |
1369 | { |
1726 | { |
1370 | if (!backend) |
1727 | if (!backend) |
1371 | { |
1728 | { |
|
|
1729 | origflags = flags; |
|
|
1730 | |
1372 | #if EV_USE_REALTIME |
1731 | #if EV_USE_REALTIME |
1373 | if (!have_realtime) |
1732 | if (!have_realtime) |
1374 | { |
1733 | { |
1375 | struct timespec ts; |
1734 | struct timespec ts; |
1376 | |
1735 | |
… | |
… | |
1387 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1746 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1388 | have_monotonic = 1; |
1747 | have_monotonic = 1; |
1389 | } |
1748 | } |
1390 | #endif |
1749 | #endif |
1391 | |
1750 | |
|
|
1751 | /* pid check not overridable via env */ |
|
|
1752 | #ifndef _WIN32 |
|
|
1753 | if (flags & EVFLAG_FORKCHECK) |
|
|
1754 | curpid = getpid (); |
|
|
1755 | #endif |
|
|
1756 | |
|
|
1757 | if (!(flags & EVFLAG_NOENV) |
|
|
1758 | && !enable_secure () |
|
|
1759 | && getenv ("LIBEV_FLAGS")) |
|
|
1760 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1761 | |
1392 | ev_rt_now = ev_time (); |
1762 | ev_rt_now = ev_time (); |
1393 | mn_now = get_clock (); |
1763 | mn_now = get_clock (); |
1394 | now_floor = mn_now; |
1764 | now_floor = mn_now; |
1395 | rtmn_diff = ev_rt_now - mn_now; |
1765 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1766 | #if EV_FEATURE_API |
|
|
1767 | invoke_cb = ev_invoke_pending; |
|
|
1768 | #endif |
1396 | |
1769 | |
1397 | io_blocktime = 0.; |
1770 | io_blocktime = 0.; |
1398 | timeout_blocktime = 0.; |
1771 | timeout_blocktime = 0.; |
1399 | backend = 0; |
1772 | backend = 0; |
1400 | backend_fd = -1; |
1773 | backend_fd = -1; |
1401 | gotasync = 0; |
1774 | sig_pending = 0; |
|
|
1775 | #if EV_ASYNC_ENABLE |
|
|
1776 | async_pending = 0; |
|
|
1777 | #endif |
1402 | #if EV_USE_INOTIFY |
1778 | #if EV_USE_INOTIFY |
1403 | fs_fd = -2; |
1779 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1404 | #endif |
1780 | #endif |
1405 | |
1781 | #if EV_USE_SIGNALFD |
1406 | /* pid check not overridable via env */ |
1782 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1407 | #ifndef _WIN32 |
|
|
1408 | if (flags & EVFLAG_FORKCHECK) |
|
|
1409 | curpid = getpid (); |
|
|
1410 | #endif |
1783 | #endif |
1411 | |
1784 | |
1412 | if (!(flags & EVFLAG_NOENV) |
1785 | if (!(flags & EVBACKEND_MASK)) |
1413 | && !enable_secure () |
|
|
1414 | && getenv ("LIBEV_FLAGS")) |
|
|
1415 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1416 | |
|
|
1417 | if (!(flags & 0x0000ffffU)) |
|
|
1418 | flags |= ev_recommended_backends (); |
1786 | flags |= ev_recommended_backends (); |
1419 | |
1787 | |
|
|
1788 | #if EV_USE_IOCP |
|
|
1789 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1790 | #endif |
1420 | #if EV_USE_PORT |
1791 | #if EV_USE_PORT |
1421 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1792 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1422 | #endif |
1793 | #endif |
1423 | #if EV_USE_KQUEUE |
1794 | #if EV_USE_KQUEUE |
1424 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1795 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1433 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1804 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1434 | #endif |
1805 | #endif |
1435 | |
1806 | |
1436 | ev_prepare_init (&pending_w, pendingcb); |
1807 | ev_prepare_init (&pending_w, pendingcb); |
1437 | |
1808 | |
|
|
1809 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1438 | ev_init (&pipe_w, pipecb); |
1810 | ev_init (&pipe_w, pipecb); |
1439 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1811 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1812 | #endif |
1440 | } |
1813 | } |
1441 | } |
1814 | } |
1442 | |
1815 | |
1443 | /* free up a loop structure */ |
1816 | /* free up a loop structure */ |
1444 | static void noinline |
1817 | void |
1445 | loop_destroy (EV_P) |
1818 | ev_loop_destroy (EV_P) |
1446 | { |
1819 | { |
1447 | int i; |
1820 | int i; |
1448 | |
1821 | |
|
|
1822 | #if EV_MULTIPLICITY |
|
|
1823 | /* mimic free (0) */ |
|
|
1824 | if (!EV_A) |
|
|
1825 | return; |
|
|
1826 | #endif |
|
|
1827 | |
|
|
1828 | #if EV_CLEANUP_ENABLE |
|
|
1829 | /* queue cleanup watchers (and execute them) */ |
|
|
1830 | if (expect_false (cleanupcnt)) |
|
|
1831 | { |
|
|
1832 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1833 | EV_INVOKE_PENDING; |
|
|
1834 | } |
|
|
1835 | #endif |
|
|
1836 | |
|
|
1837 | #if EV_CHILD_ENABLE |
|
|
1838 | if (ev_is_active (&childev)) |
|
|
1839 | { |
|
|
1840 | ev_ref (EV_A); /* child watcher */ |
|
|
1841 | ev_signal_stop (EV_A_ &childev); |
|
|
1842 | } |
|
|
1843 | #endif |
|
|
1844 | |
1449 | if (ev_is_active (&pipe_w)) |
1845 | if (ev_is_active (&pipe_w)) |
1450 | { |
1846 | { |
1451 | ev_ref (EV_A); /* signal watcher */ |
1847 | /*ev_ref (EV_A);*/ |
1452 | ev_io_stop (EV_A_ &pipe_w); |
1848 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1453 | |
1849 | |
1454 | #if EV_USE_EVENTFD |
1850 | #if EV_USE_EVENTFD |
1455 | if (evfd >= 0) |
1851 | if (evfd >= 0) |
1456 | close (evfd); |
1852 | close (evfd); |
1457 | #endif |
1853 | #endif |
1458 | |
1854 | |
1459 | if (evpipe [0] >= 0) |
1855 | if (evpipe [0] >= 0) |
1460 | { |
1856 | { |
1461 | close (evpipe [0]); |
1857 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1462 | close (evpipe [1]); |
1858 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1463 | } |
1859 | } |
1464 | } |
1860 | } |
|
|
1861 | |
|
|
1862 | #if EV_USE_SIGNALFD |
|
|
1863 | if (ev_is_active (&sigfd_w)) |
|
|
1864 | close (sigfd); |
|
|
1865 | #endif |
1465 | |
1866 | |
1466 | #if EV_USE_INOTIFY |
1867 | #if EV_USE_INOTIFY |
1467 | if (fs_fd >= 0) |
1868 | if (fs_fd >= 0) |
1468 | close (fs_fd); |
1869 | close (fs_fd); |
1469 | #endif |
1870 | #endif |
1470 | |
1871 | |
1471 | if (backend_fd >= 0) |
1872 | if (backend_fd >= 0) |
1472 | close (backend_fd); |
1873 | close (backend_fd); |
1473 | |
1874 | |
|
|
1875 | #if EV_USE_IOCP |
|
|
1876 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1877 | #endif |
1474 | #if EV_USE_PORT |
1878 | #if EV_USE_PORT |
1475 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1879 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1476 | #endif |
1880 | #endif |
1477 | #if EV_USE_KQUEUE |
1881 | #if EV_USE_KQUEUE |
1478 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1882 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1493 | #if EV_IDLE_ENABLE |
1897 | #if EV_IDLE_ENABLE |
1494 | array_free (idle, [i]); |
1898 | array_free (idle, [i]); |
1495 | #endif |
1899 | #endif |
1496 | } |
1900 | } |
1497 | |
1901 | |
1498 | ev_free (anfds); anfdmax = 0; |
1902 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1499 | |
1903 | |
1500 | /* have to use the microsoft-never-gets-it-right macro */ |
1904 | /* have to use the microsoft-never-gets-it-right macro */ |
1501 | array_free (rfeed, EMPTY); |
1905 | array_free (rfeed, EMPTY); |
1502 | array_free (fdchange, EMPTY); |
1906 | array_free (fdchange, EMPTY); |
1503 | array_free (timer, EMPTY); |
1907 | array_free (timer, EMPTY); |
… | |
… | |
1505 | array_free (periodic, EMPTY); |
1909 | array_free (periodic, EMPTY); |
1506 | #endif |
1910 | #endif |
1507 | #if EV_FORK_ENABLE |
1911 | #if EV_FORK_ENABLE |
1508 | array_free (fork, EMPTY); |
1912 | array_free (fork, EMPTY); |
1509 | #endif |
1913 | #endif |
|
|
1914 | #if EV_CLEANUP_ENABLE |
|
|
1915 | array_free (cleanup, EMPTY); |
|
|
1916 | #endif |
1510 | array_free (prepare, EMPTY); |
1917 | array_free (prepare, EMPTY); |
1511 | array_free (check, EMPTY); |
1918 | array_free (check, EMPTY); |
1512 | #if EV_ASYNC_ENABLE |
1919 | #if EV_ASYNC_ENABLE |
1513 | array_free (async, EMPTY); |
1920 | array_free (async, EMPTY); |
1514 | #endif |
1921 | #endif |
1515 | |
1922 | |
1516 | backend = 0; |
1923 | backend = 0; |
|
|
1924 | |
|
|
1925 | #if EV_MULTIPLICITY |
|
|
1926 | if (ev_is_default_loop (EV_A)) |
|
|
1927 | #endif |
|
|
1928 | ev_default_loop_ptr = 0; |
|
|
1929 | #if EV_MULTIPLICITY |
|
|
1930 | else |
|
|
1931 | ev_free (EV_A); |
|
|
1932 | #endif |
1517 | } |
1933 | } |
1518 | |
1934 | |
1519 | #if EV_USE_INOTIFY |
1935 | #if EV_USE_INOTIFY |
1520 | inline_size void infy_fork (EV_P); |
1936 | inline_size void infy_fork (EV_P); |
1521 | #endif |
1937 | #endif |
… | |
… | |
1538 | |
1954 | |
1539 | if (ev_is_active (&pipe_w)) |
1955 | if (ev_is_active (&pipe_w)) |
1540 | { |
1956 | { |
1541 | /* this "locks" the handlers against writing to the pipe */ |
1957 | /* this "locks" the handlers against writing to the pipe */ |
1542 | /* while we modify the fd vars */ |
1958 | /* while we modify the fd vars */ |
1543 | gotsig = 1; |
1959 | sig_pending = 1; |
1544 | #if EV_ASYNC_ENABLE |
1960 | #if EV_ASYNC_ENABLE |
1545 | gotasync = 1; |
1961 | async_pending = 1; |
1546 | #endif |
1962 | #endif |
1547 | |
1963 | |
1548 | ev_ref (EV_A); |
1964 | ev_ref (EV_A); |
1549 | ev_io_stop (EV_A_ &pipe_w); |
1965 | ev_io_stop (EV_A_ &pipe_w); |
1550 | |
1966 | |
… | |
… | |
1553 | close (evfd); |
1969 | close (evfd); |
1554 | #endif |
1970 | #endif |
1555 | |
1971 | |
1556 | if (evpipe [0] >= 0) |
1972 | if (evpipe [0] >= 0) |
1557 | { |
1973 | { |
1558 | close (evpipe [0]); |
1974 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1559 | close (evpipe [1]); |
1975 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1560 | } |
1976 | } |
1561 | |
1977 | |
|
|
1978 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1562 | evpipe_init (EV_A); |
1979 | evpipe_init (EV_A); |
1563 | /* now iterate over everything, in case we missed something */ |
1980 | /* now iterate over everything, in case we missed something */ |
1564 | pipecb (EV_A_ &pipe_w, EV_READ); |
1981 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1982 | #endif |
1565 | } |
1983 | } |
1566 | |
1984 | |
1567 | postfork = 0; |
1985 | postfork = 0; |
1568 | } |
1986 | } |
1569 | |
1987 | |
1570 | #if EV_MULTIPLICITY |
1988 | #if EV_MULTIPLICITY |
1571 | |
1989 | |
1572 | struct ev_loop * |
1990 | struct ev_loop * |
1573 | ev_loop_new (unsigned int flags) |
1991 | ev_loop_new (unsigned int flags) |
1574 | { |
1992 | { |
1575 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1993 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1576 | |
1994 | |
1577 | memset (loop, 0, sizeof (struct ev_loop)); |
1995 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1578 | |
|
|
1579 | loop_init (EV_A_ flags); |
1996 | loop_init (EV_A_ flags); |
1580 | |
1997 | |
1581 | if (ev_backend (EV_A)) |
1998 | if (ev_backend (EV_A)) |
1582 | return loop; |
1999 | return EV_A; |
1583 | |
2000 | |
|
|
2001 | ev_free (EV_A); |
1584 | return 0; |
2002 | return 0; |
1585 | } |
2003 | } |
1586 | |
2004 | |
1587 | void |
2005 | #endif /* multiplicity */ |
1588 | ev_loop_destroy (EV_P) |
|
|
1589 | { |
|
|
1590 | loop_destroy (EV_A); |
|
|
1591 | ev_free (loop); |
|
|
1592 | } |
|
|
1593 | |
|
|
1594 | void |
|
|
1595 | ev_loop_fork (EV_P) |
|
|
1596 | { |
|
|
1597 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1598 | } |
|
|
1599 | |
2006 | |
1600 | #if EV_VERIFY |
2007 | #if EV_VERIFY |
1601 | static void noinline |
2008 | static void noinline |
1602 | verify_watcher (EV_P_ W w) |
2009 | verify_watcher (EV_P_ W w) |
1603 | { |
2010 | { |
… | |
… | |
1631 | verify_watcher (EV_A_ ws [cnt]); |
2038 | verify_watcher (EV_A_ ws [cnt]); |
1632 | } |
2039 | } |
1633 | } |
2040 | } |
1634 | #endif |
2041 | #endif |
1635 | |
2042 | |
|
|
2043 | #if EV_FEATURE_API |
1636 | void |
2044 | void |
1637 | ev_loop_verify (EV_P) |
2045 | ev_verify (EV_P) |
1638 | { |
2046 | { |
1639 | #if EV_VERIFY |
2047 | #if EV_VERIFY |
1640 | int i; |
2048 | int i; |
1641 | WL w; |
2049 | WL w; |
1642 | |
2050 | |
… | |
… | |
1676 | #if EV_FORK_ENABLE |
2084 | #if EV_FORK_ENABLE |
1677 | assert (forkmax >= forkcnt); |
2085 | assert (forkmax >= forkcnt); |
1678 | array_verify (EV_A_ (W *)forks, forkcnt); |
2086 | array_verify (EV_A_ (W *)forks, forkcnt); |
1679 | #endif |
2087 | #endif |
1680 | |
2088 | |
|
|
2089 | #if EV_CLEANUP_ENABLE |
|
|
2090 | assert (cleanupmax >= cleanupcnt); |
|
|
2091 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2092 | #endif |
|
|
2093 | |
1681 | #if EV_ASYNC_ENABLE |
2094 | #if EV_ASYNC_ENABLE |
1682 | assert (asyncmax >= asynccnt); |
2095 | assert (asyncmax >= asynccnt); |
1683 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2096 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1684 | #endif |
2097 | #endif |
1685 | |
2098 | |
|
|
2099 | #if EV_PREPARE_ENABLE |
1686 | assert (preparemax >= preparecnt); |
2100 | assert (preparemax >= preparecnt); |
1687 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2101 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2102 | #endif |
1688 | |
2103 | |
|
|
2104 | #if EV_CHECK_ENABLE |
1689 | assert (checkmax >= checkcnt); |
2105 | assert (checkmax >= checkcnt); |
1690 | array_verify (EV_A_ (W *)checks, checkcnt); |
2106 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2107 | #endif |
1691 | |
2108 | |
1692 | # if 0 |
2109 | # if 0 |
|
|
2110 | #if EV_CHILD_ENABLE |
1693 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2111 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1694 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2112 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2113 | #endif |
1695 | # endif |
2114 | # endif |
1696 | #endif |
2115 | #endif |
1697 | } |
2116 | } |
1698 | |
2117 | #endif |
1699 | #endif /* multiplicity */ |
|
|
1700 | |
2118 | |
1701 | #if EV_MULTIPLICITY |
2119 | #if EV_MULTIPLICITY |
1702 | struct ev_loop * |
2120 | struct ev_loop * |
1703 | ev_default_loop_init (unsigned int flags) |
|
|
1704 | #else |
2121 | #else |
1705 | int |
2122 | int |
|
|
2123 | #endif |
1706 | ev_default_loop (unsigned int flags) |
2124 | ev_default_loop (unsigned int flags) |
1707 | #endif |
|
|
1708 | { |
2125 | { |
1709 | if (!ev_default_loop_ptr) |
2126 | if (!ev_default_loop_ptr) |
1710 | { |
2127 | { |
1711 | #if EV_MULTIPLICITY |
2128 | #if EV_MULTIPLICITY |
1712 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2129 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1713 | #else |
2130 | #else |
1714 | ev_default_loop_ptr = 1; |
2131 | ev_default_loop_ptr = 1; |
1715 | #endif |
2132 | #endif |
1716 | |
2133 | |
1717 | loop_init (EV_A_ flags); |
2134 | loop_init (EV_A_ flags); |
1718 | |
2135 | |
1719 | if (ev_backend (EV_A)) |
2136 | if (ev_backend (EV_A)) |
1720 | { |
2137 | { |
1721 | #ifndef _WIN32 |
2138 | #if EV_CHILD_ENABLE |
1722 | ev_signal_init (&childev, childcb, SIGCHLD); |
2139 | ev_signal_init (&childev, childcb, SIGCHLD); |
1723 | ev_set_priority (&childev, EV_MAXPRI); |
2140 | ev_set_priority (&childev, EV_MAXPRI); |
1724 | ev_signal_start (EV_A_ &childev); |
2141 | ev_signal_start (EV_A_ &childev); |
1725 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2142 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1726 | #endif |
2143 | #endif |
… | |
… | |
1731 | |
2148 | |
1732 | return ev_default_loop_ptr; |
2149 | return ev_default_loop_ptr; |
1733 | } |
2150 | } |
1734 | |
2151 | |
1735 | void |
2152 | void |
1736 | ev_default_destroy (void) |
2153 | ev_loop_fork (EV_P) |
1737 | { |
2154 | { |
1738 | #if EV_MULTIPLICITY |
|
|
1739 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1740 | #endif |
|
|
1741 | |
|
|
1742 | ev_default_loop_ptr = 0; |
|
|
1743 | |
|
|
1744 | #ifndef _WIN32 |
|
|
1745 | ev_ref (EV_A); /* child watcher */ |
|
|
1746 | ev_signal_stop (EV_A_ &childev); |
|
|
1747 | #endif |
|
|
1748 | |
|
|
1749 | loop_destroy (EV_A); |
|
|
1750 | } |
|
|
1751 | |
|
|
1752 | void |
|
|
1753 | ev_default_fork (void) |
|
|
1754 | { |
|
|
1755 | #if EV_MULTIPLICITY |
|
|
1756 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1757 | #endif |
|
|
1758 | |
|
|
1759 | postfork = 1; /* must be in line with ev_loop_fork */ |
2155 | postfork = 1; /* must be in line with ev_default_fork */ |
1760 | } |
2156 | } |
1761 | |
2157 | |
1762 | /*****************************************************************************/ |
2158 | /*****************************************************************************/ |
1763 | |
2159 | |
1764 | void |
2160 | void |
1765 | ev_invoke (EV_P_ void *w, int revents) |
2161 | ev_invoke (EV_P_ void *w, int revents) |
1766 | { |
2162 | { |
1767 | EV_CB_INVOKE ((W)w, revents); |
2163 | EV_CB_INVOKE ((W)w, revents); |
1768 | } |
2164 | } |
1769 | |
2165 | |
1770 | inline_speed void |
2166 | unsigned int |
1771 | call_pending (EV_P) |
2167 | ev_pending_count (EV_P) |
|
|
2168 | { |
|
|
2169 | int pri; |
|
|
2170 | unsigned int count = 0; |
|
|
2171 | |
|
|
2172 | for (pri = NUMPRI; pri--; ) |
|
|
2173 | count += pendingcnt [pri]; |
|
|
2174 | |
|
|
2175 | return count; |
|
|
2176 | } |
|
|
2177 | |
|
|
2178 | void noinline |
|
|
2179 | ev_invoke_pending (EV_P) |
1772 | { |
2180 | { |
1773 | int pri; |
2181 | int pri; |
1774 | |
2182 | |
1775 | for (pri = NUMPRI; pri--; ) |
2183 | for (pri = NUMPRI; pri--; ) |
1776 | while (pendingcnt [pri]) |
2184 | while (pendingcnt [pri]) |
1777 | { |
2185 | { |
1778 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2186 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1779 | |
|
|
1780 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1781 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1782 | |
2187 | |
1783 | p->w->pending = 0; |
2188 | p->w->pending = 0; |
1784 | EV_CB_INVOKE (p->w, p->events); |
2189 | EV_CB_INVOKE (p->w, p->events); |
1785 | EV_FREQUENT_CHECK; |
2190 | EV_FREQUENT_CHECK; |
1786 | } |
2191 | } |
… | |
… | |
1843 | EV_FREQUENT_CHECK; |
2248 | EV_FREQUENT_CHECK; |
1844 | feed_reverse (EV_A_ (W)w); |
2249 | feed_reverse (EV_A_ (W)w); |
1845 | } |
2250 | } |
1846 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2251 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1847 | |
2252 | |
1848 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2253 | feed_reverse_done (EV_A_ EV_TIMER); |
1849 | } |
2254 | } |
1850 | } |
2255 | } |
1851 | |
2256 | |
1852 | #if EV_PERIODIC_ENABLE |
2257 | #if EV_PERIODIC_ENABLE |
|
|
2258 | |
|
|
2259 | static void noinline |
|
|
2260 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2261 | { |
|
|
2262 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2263 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2264 | |
|
|
2265 | /* the above almost always errs on the low side */ |
|
|
2266 | while (at <= ev_rt_now) |
|
|
2267 | { |
|
|
2268 | ev_tstamp nat = at + w->interval; |
|
|
2269 | |
|
|
2270 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2271 | if (expect_false (nat == at)) |
|
|
2272 | { |
|
|
2273 | at = ev_rt_now; |
|
|
2274 | break; |
|
|
2275 | } |
|
|
2276 | |
|
|
2277 | at = nat; |
|
|
2278 | } |
|
|
2279 | |
|
|
2280 | ev_at (w) = at; |
|
|
2281 | } |
|
|
2282 | |
1853 | /* make periodics pending */ |
2283 | /* make periodics pending */ |
1854 | inline_size void |
2284 | inline_size void |
1855 | periodics_reify (EV_P) |
2285 | periodics_reify (EV_P) |
1856 | { |
2286 | { |
1857 | EV_FREQUENT_CHECK; |
2287 | EV_FREQUENT_CHECK; |
… | |
… | |
1876 | ANHE_at_cache (periodics [HEAP0]); |
2306 | ANHE_at_cache (periodics [HEAP0]); |
1877 | downheap (periodics, periodiccnt, HEAP0); |
2307 | downheap (periodics, periodiccnt, HEAP0); |
1878 | } |
2308 | } |
1879 | else if (w->interval) |
2309 | else if (w->interval) |
1880 | { |
2310 | { |
1881 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2311 | periodic_recalc (EV_A_ w); |
1882 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1883 | /* this might happen because of floating point inexactness */ |
|
|
1884 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1885 | { |
|
|
1886 | ev_at (w) += w->interval; |
|
|
1887 | |
|
|
1888 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1889 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1890 | /* has effectively asked to get triggered more often than possible */ |
|
|
1891 | if (ev_at (w) < ev_rt_now) |
|
|
1892 | ev_at (w) = ev_rt_now; |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | ANHE_at_cache (periodics [HEAP0]); |
2312 | ANHE_at_cache (periodics [HEAP0]); |
1896 | downheap (periodics, periodiccnt, HEAP0); |
2313 | downheap (periodics, periodiccnt, HEAP0); |
1897 | } |
2314 | } |
1898 | else |
2315 | else |
1899 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2316 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
1906 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2323 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1907 | } |
2324 | } |
1908 | } |
2325 | } |
1909 | |
2326 | |
1910 | /* simply recalculate all periodics */ |
2327 | /* simply recalculate all periodics */ |
1911 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2328 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1912 | static void noinline |
2329 | static void noinline |
1913 | periodics_reschedule (EV_P) |
2330 | periodics_reschedule (EV_P) |
1914 | { |
2331 | { |
1915 | int i; |
2332 | int i; |
1916 | |
2333 | |
… | |
… | |
1920 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2337 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1921 | |
2338 | |
1922 | if (w->reschedule_cb) |
2339 | if (w->reschedule_cb) |
1923 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2340 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1924 | else if (w->interval) |
2341 | else if (w->interval) |
1925 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2342 | periodic_recalc (EV_A_ w); |
1926 | |
2343 | |
1927 | ANHE_at_cache (periodics [i]); |
2344 | ANHE_at_cache (periodics [i]); |
1928 | } |
2345 | } |
1929 | |
2346 | |
1930 | reheap (periodics, periodiccnt); |
2347 | reheap (periodics, periodiccnt); |
… | |
… | |
1944 | ANHE_at_cache (*he); |
2361 | ANHE_at_cache (*he); |
1945 | } |
2362 | } |
1946 | } |
2363 | } |
1947 | |
2364 | |
1948 | /* fetch new monotonic and realtime times from the kernel */ |
2365 | /* fetch new monotonic and realtime times from the kernel */ |
1949 | /* also detetc if there was a timejump, and act accordingly */ |
2366 | /* also detect if there was a timejump, and act accordingly */ |
1950 | inline_speed void |
2367 | inline_speed void |
1951 | time_update (EV_P_ ev_tstamp max_block) |
2368 | time_update (EV_P_ ev_tstamp max_block) |
1952 | { |
2369 | { |
1953 | int i; |
|
|
1954 | |
|
|
1955 | #if EV_USE_MONOTONIC |
2370 | #if EV_USE_MONOTONIC |
1956 | if (expect_true (have_monotonic)) |
2371 | if (expect_true (have_monotonic)) |
1957 | { |
2372 | { |
|
|
2373 | int i; |
1958 | ev_tstamp odiff = rtmn_diff; |
2374 | ev_tstamp odiff = rtmn_diff; |
1959 | |
2375 | |
1960 | mn_now = get_clock (); |
2376 | mn_now = get_clock (); |
1961 | |
2377 | |
1962 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2378 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1978 | * doesn't hurt either as we only do this on time-jumps or |
2394 | * doesn't hurt either as we only do this on time-jumps or |
1979 | * in the unlikely event of having been preempted here. |
2395 | * in the unlikely event of having been preempted here. |
1980 | */ |
2396 | */ |
1981 | for (i = 4; --i; ) |
2397 | for (i = 4; --i; ) |
1982 | { |
2398 | { |
|
|
2399 | ev_tstamp diff; |
1983 | rtmn_diff = ev_rt_now - mn_now; |
2400 | rtmn_diff = ev_rt_now - mn_now; |
1984 | |
2401 | |
|
|
2402 | diff = odiff - rtmn_diff; |
|
|
2403 | |
1985 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2404 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1986 | return; /* all is well */ |
2405 | return; /* all is well */ |
1987 | |
2406 | |
1988 | ev_rt_now = ev_time (); |
2407 | ev_rt_now = ev_time (); |
1989 | mn_now = get_clock (); |
2408 | mn_now = get_clock (); |
1990 | now_floor = mn_now; |
2409 | now_floor = mn_now; |
… | |
… | |
2012 | |
2431 | |
2013 | mn_now = ev_rt_now; |
2432 | mn_now = ev_rt_now; |
2014 | } |
2433 | } |
2015 | } |
2434 | } |
2016 | |
2435 | |
2017 | static int loop_done; |
|
|
2018 | |
|
|
2019 | void |
2436 | void |
2020 | ev_loop (EV_P_ int flags) |
2437 | ev_run (EV_P_ int flags) |
2021 | { |
2438 | { |
|
|
2439 | #if EV_FEATURE_API |
|
|
2440 | ++loop_depth; |
|
|
2441 | #endif |
|
|
2442 | |
|
|
2443 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2444 | |
2022 | loop_done = EVUNLOOP_CANCEL; |
2445 | loop_done = EVBREAK_CANCEL; |
2023 | |
2446 | |
2024 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2447 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2025 | |
2448 | |
2026 | do |
2449 | do |
2027 | { |
2450 | { |
2028 | #if EV_VERIFY >= 2 |
2451 | #if EV_VERIFY >= 2 |
2029 | ev_loop_verify (EV_A); |
2452 | ev_verify (EV_A); |
2030 | #endif |
2453 | #endif |
2031 | |
2454 | |
2032 | #ifndef _WIN32 |
2455 | #ifndef _WIN32 |
2033 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2456 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2034 | if (expect_false (getpid () != curpid)) |
2457 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2042 | /* we might have forked, so queue fork handlers */ |
2465 | /* we might have forked, so queue fork handlers */ |
2043 | if (expect_false (postfork)) |
2466 | if (expect_false (postfork)) |
2044 | if (forkcnt) |
2467 | if (forkcnt) |
2045 | { |
2468 | { |
2046 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2469 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2047 | call_pending (EV_A); |
2470 | EV_INVOKE_PENDING; |
2048 | } |
2471 | } |
2049 | #endif |
2472 | #endif |
2050 | |
2473 | |
|
|
2474 | #if EV_PREPARE_ENABLE |
2051 | /* queue prepare watchers (and execute them) */ |
2475 | /* queue prepare watchers (and execute them) */ |
2052 | if (expect_false (preparecnt)) |
2476 | if (expect_false (preparecnt)) |
2053 | { |
2477 | { |
2054 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2478 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2055 | call_pending (EV_A); |
2479 | EV_INVOKE_PENDING; |
2056 | } |
2480 | } |
|
|
2481 | #endif |
|
|
2482 | |
|
|
2483 | if (expect_false (loop_done)) |
|
|
2484 | break; |
2057 | |
2485 | |
2058 | /* we might have forked, so reify kernel state if necessary */ |
2486 | /* we might have forked, so reify kernel state if necessary */ |
2059 | if (expect_false (postfork)) |
2487 | if (expect_false (postfork)) |
2060 | loop_fork (EV_A); |
2488 | loop_fork (EV_A); |
2061 | |
2489 | |
… | |
… | |
2065 | /* calculate blocking time */ |
2493 | /* calculate blocking time */ |
2066 | { |
2494 | { |
2067 | ev_tstamp waittime = 0.; |
2495 | ev_tstamp waittime = 0.; |
2068 | ev_tstamp sleeptime = 0.; |
2496 | ev_tstamp sleeptime = 0.; |
2069 | |
2497 | |
|
|
2498 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2499 | ev_tstamp prev_mn_now = mn_now; |
|
|
2500 | |
|
|
2501 | /* update time to cancel out callback processing overhead */ |
|
|
2502 | time_update (EV_A_ 1e100); |
|
|
2503 | |
2070 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2504 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2071 | { |
2505 | { |
2072 | /* update time to cancel out callback processing overhead */ |
|
|
2073 | time_update (EV_A_ 1e100); |
|
|
2074 | |
|
|
2075 | waittime = MAX_BLOCKTIME; |
2506 | waittime = MAX_BLOCKTIME; |
2076 | |
2507 | |
2077 | if (timercnt) |
2508 | if (timercnt) |
2078 | { |
2509 | { |
2079 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2510 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_mintime; |
2080 | if (waittime > to) waittime = to; |
2511 | if (waittime > to) waittime = to; |
2081 | } |
2512 | } |
2082 | |
2513 | |
2083 | #if EV_PERIODIC_ENABLE |
2514 | #if EV_PERIODIC_ENABLE |
2084 | if (periodiccnt) |
2515 | if (periodiccnt) |
2085 | { |
2516 | { |
2086 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2517 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_mintime; |
2087 | if (waittime > to) waittime = to; |
2518 | if (waittime > to) waittime = to; |
2088 | } |
2519 | } |
2089 | #endif |
2520 | #endif |
2090 | |
2521 | |
|
|
2522 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2091 | if (expect_false (waittime < timeout_blocktime)) |
2523 | if (expect_false (waittime < timeout_blocktime)) |
2092 | waittime = timeout_blocktime; |
2524 | waittime = timeout_blocktime; |
2093 | |
2525 | |
2094 | sleeptime = waittime - backend_fudge; |
2526 | /* extra check because io_blocktime is commonly 0 */ |
2095 | |
|
|
2096 | if (expect_true (sleeptime > io_blocktime)) |
2527 | if (expect_false (io_blocktime)) |
2097 | sleeptime = io_blocktime; |
|
|
2098 | |
|
|
2099 | if (sleeptime) |
|
|
2100 | { |
2528 | { |
|
|
2529 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2530 | |
|
|
2531 | if (sleeptime > waittime - backend_mintime) |
|
|
2532 | sleeptime = waittime - backend_mintime; |
|
|
2533 | |
|
|
2534 | if (expect_true (sleeptime > 0.)) |
|
|
2535 | { |
2101 | ev_sleep (sleeptime); |
2536 | ev_sleep (sleeptime); |
2102 | waittime -= sleeptime; |
2537 | waittime -= sleeptime; |
|
|
2538 | } |
2103 | } |
2539 | } |
2104 | } |
2540 | } |
2105 | |
2541 | |
|
|
2542 | #if EV_FEATURE_API |
2106 | ++loop_count; |
2543 | ++loop_count; |
|
|
2544 | #endif |
|
|
2545 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2107 | backend_poll (EV_A_ waittime); |
2546 | backend_poll (EV_A_ waittime); |
|
|
2547 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2108 | |
2548 | |
2109 | /* update ev_rt_now, do magic */ |
2549 | /* update ev_rt_now, do magic */ |
2110 | time_update (EV_A_ waittime + sleeptime); |
2550 | time_update (EV_A_ waittime + sleeptime); |
2111 | } |
2551 | } |
2112 | |
2552 | |
… | |
… | |
2119 | #if EV_IDLE_ENABLE |
2559 | #if EV_IDLE_ENABLE |
2120 | /* queue idle watchers unless other events are pending */ |
2560 | /* queue idle watchers unless other events are pending */ |
2121 | idle_reify (EV_A); |
2561 | idle_reify (EV_A); |
2122 | #endif |
2562 | #endif |
2123 | |
2563 | |
|
|
2564 | #if EV_CHECK_ENABLE |
2124 | /* queue check watchers, to be executed first */ |
2565 | /* queue check watchers, to be executed first */ |
2125 | if (expect_false (checkcnt)) |
2566 | if (expect_false (checkcnt)) |
2126 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2567 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2568 | #endif |
2127 | |
2569 | |
2128 | call_pending (EV_A); |
2570 | EV_INVOKE_PENDING; |
2129 | } |
2571 | } |
2130 | while (expect_true ( |
2572 | while (expect_true ( |
2131 | activecnt |
2573 | activecnt |
2132 | && !loop_done |
2574 | && !loop_done |
2133 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2575 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2134 | )); |
2576 | )); |
2135 | |
2577 | |
2136 | if (loop_done == EVUNLOOP_ONE) |
2578 | if (loop_done == EVBREAK_ONE) |
2137 | loop_done = EVUNLOOP_CANCEL; |
2579 | loop_done = EVBREAK_CANCEL; |
2138 | } |
|
|
2139 | |
2580 | |
|
|
2581 | #if EV_FEATURE_API |
|
|
2582 | --loop_depth; |
|
|
2583 | #endif |
|
|
2584 | } |
|
|
2585 | |
2140 | void |
2586 | void |
2141 | ev_unloop (EV_P_ int how) |
2587 | ev_break (EV_P_ int how) |
2142 | { |
2588 | { |
2143 | loop_done = how; |
2589 | loop_done = how; |
2144 | } |
2590 | } |
2145 | |
2591 | |
2146 | void |
2592 | void |
… | |
… | |
2193 | inline_size void |
2639 | inline_size void |
2194 | wlist_del (WL *head, WL elem) |
2640 | wlist_del (WL *head, WL elem) |
2195 | { |
2641 | { |
2196 | while (*head) |
2642 | while (*head) |
2197 | { |
2643 | { |
2198 | if (*head == elem) |
2644 | if (expect_true (*head == elem)) |
2199 | { |
2645 | { |
2200 | *head = elem->next; |
2646 | *head = elem->next; |
2201 | return; |
2647 | break; |
2202 | } |
2648 | } |
2203 | |
2649 | |
2204 | head = &(*head)->next; |
2650 | head = &(*head)->next; |
2205 | } |
2651 | } |
2206 | } |
2652 | } |
… | |
… | |
2234 | } |
2680 | } |
2235 | |
2681 | |
2236 | inline_size void |
2682 | inline_size void |
2237 | pri_adjust (EV_P_ W w) |
2683 | pri_adjust (EV_P_ W w) |
2238 | { |
2684 | { |
2239 | int pri = w->priority; |
2685 | int pri = ev_priority (w); |
2240 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2686 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2241 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2687 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2242 | w->priority = pri; |
2688 | ev_set_priority (w, pri); |
2243 | } |
2689 | } |
2244 | |
2690 | |
2245 | inline_speed void |
2691 | inline_speed void |
2246 | ev_start (EV_P_ W w, int active) |
2692 | ev_start (EV_P_ W w, int active) |
2247 | { |
2693 | { |
… | |
… | |
2266 | |
2712 | |
2267 | if (expect_false (ev_is_active (w))) |
2713 | if (expect_false (ev_is_active (w))) |
2268 | return; |
2714 | return; |
2269 | |
2715 | |
2270 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2716 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2271 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2717 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2272 | |
2718 | |
2273 | EV_FREQUENT_CHECK; |
2719 | EV_FREQUENT_CHECK; |
2274 | |
2720 | |
2275 | ev_start (EV_A_ (W)w, 1); |
2721 | ev_start (EV_A_ (W)w, 1); |
2276 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2722 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2277 | wlist_add (&anfds[fd].head, (WL)w); |
2723 | wlist_add (&anfds[fd].head, (WL)w); |
2278 | |
2724 | |
2279 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2725 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2280 | w->events &= ~EV__IOFDSET; |
2726 | w->events &= ~EV__IOFDSET; |
2281 | |
2727 | |
2282 | EV_FREQUENT_CHECK; |
2728 | EV_FREQUENT_CHECK; |
2283 | } |
2729 | } |
2284 | |
2730 | |
… | |
… | |
2294 | EV_FREQUENT_CHECK; |
2740 | EV_FREQUENT_CHECK; |
2295 | |
2741 | |
2296 | wlist_del (&anfds[w->fd].head, (WL)w); |
2742 | wlist_del (&anfds[w->fd].head, (WL)w); |
2297 | ev_stop (EV_A_ (W)w); |
2743 | ev_stop (EV_A_ (W)w); |
2298 | |
2744 | |
2299 | fd_change (EV_A_ w->fd, 1); |
2745 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2300 | |
2746 | |
2301 | EV_FREQUENT_CHECK; |
2747 | EV_FREQUENT_CHECK; |
2302 | } |
2748 | } |
2303 | |
2749 | |
2304 | void noinline |
2750 | void noinline |
… | |
… | |
2346 | timers [active] = timers [timercnt + HEAP0]; |
2792 | timers [active] = timers [timercnt + HEAP0]; |
2347 | adjustheap (timers, timercnt, active); |
2793 | adjustheap (timers, timercnt, active); |
2348 | } |
2794 | } |
2349 | } |
2795 | } |
2350 | |
2796 | |
2351 | EV_FREQUENT_CHECK; |
|
|
2352 | |
|
|
2353 | ev_at (w) -= mn_now; |
2797 | ev_at (w) -= mn_now; |
2354 | |
2798 | |
2355 | ev_stop (EV_A_ (W)w); |
2799 | ev_stop (EV_A_ (W)w); |
|
|
2800 | |
|
|
2801 | EV_FREQUENT_CHECK; |
2356 | } |
2802 | } |
2357 | |
2803 | |
2358 | void noinline |
2804 | void noinline |
2359 | ev_timer_again (EV_P_ ev_timer *w) |
2805 | ev_timer_again (EV_P_ ev_timer *w) |
2360 | { |
2806 | { |
… | |
… | |
2378 | } |
2824 | } |
2379 | |
2825 | |
2380 | EV_FREQUENT_CHECK; |
2826 | EV_FREQUENT_CHECK; |
2381 | } |
2827 | } |
2382 | |
2828 | |
|
|
2829 | ev_tstamp |
|
|
2830 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2831 | { |
|
|
2832 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2833 | } |
|
|
2834 | |
2383 | #if EV_PERIODIC_ENABLE |
2835 | #if EV_PERIODIC_ENABLE |
2384 | void noinline |
2836 | void noinline |
2385 | ev_periodic_start (EV_P_ ev_periodic *w) |
2837 | ev_periodic_start (EV_P_ ev_periodic *w) |
2386 | { |
2838 | { |
2387 | if (expect_false (ev_is_active (w))) |
2839 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2390 | if (w->reschedule_cb) |
2842 | if (w->reschedule_cb) |
2391 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2843 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2392 | else if (w->interval) |
2844 | else if (w->interval) |
2393 | { |
2845 | { |
2394 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2846 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2395 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2847 | periodic_recalc (EV_A_ w); |
2396 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2397 | } |
2848 | } |
2398 | else |
2849 | else |
2399 | ev_at (w) = w->offset; |
2850 | ev_at (w) = w->offset; |
2400 | |
2851 | |
2401 | EV_FREQUENT_CHECK; |
2852 | EV_FREQUENT_CHECK; |
… | |
… | |
2433 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2884 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2434 | adjustheap (periodics, periodiccnt, active); |
2885 | adjustheap (periodics, periodiccnt, active); |
2435 | } |
2886 | } |
2436 | } |
2887 | } |
2437 | |
2888 | |
2438 | EV_FREQUENT_CHECK; |
|
|
2439 | |
|
|
2440 | ev_stop (EV_A_ (W)w); |
2889 | ev_stop (EV_A_ (W)w); |
|
|
2890 | |
|
|
2891 | EV_FREQUENT_CHECK; |
2441 | } |
2892 | } |
2442 | |
2893 | |
2443 | void noinline |
2894 | void noinline |
2444 | ev_periodic_again (EV_P_ ev_periodic *w) |
2895 | ev_periodic_again (EV_P_ ev_periodic *w) |
2445 | { |
2896 | { |
… | |
… | |
2451 | |
2902 | |
2452 | #ifndef SA_RESTART |
2903 | #ifndef SA_RESTART |
2453 | # define SA_RESTART 0 |
2904 | # define SA_RESTART 0 |
2454 | #endif |
2905 | #endif |
2455 | |
2906 | |
|
|
2907 | #if EV_SIGNAL_ENABLE |
|
|
2908 | |
2456 | void noinline |
2909 | void noinline |
2457 | ev_signal_start (EV_P_ ev_signal *w) |
2910 | ev_signal_start (EV_P_ ev_signal *w) |
2458 | { |
2911 | { |
2459 | #if EV_MULTIPLICITY |
|
|
2460 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2461 | #endif |
|
|
2462 | if (expect_false (ev_is_active (w))) |
2912 | if (expect_false (ev_is_active (w))) |
2463 | return; |
2913 | return; |
2464 | |
2914 | |
2465 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2915 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2466 | |
2916 | |
2467 | evpipe_init (EV_A); |
2917 | #if EV_MULTIPLICITY |
|
|
2918 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2919 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2468 | |
2920 | |
2469 | EV_FREQUENT_CHECK; |
2921 | signals [w->signum - 1].loop = EV_A; |
|
|
2922 | #endif |
2470 | |
2923 | |
|
|
2924 | EV_FREQUENT_CHECK; |
|
|
2925 | |
|
|
2926 | #if EV_USE_SIGNALFD |
|
|
2927 | if (sigfd == -2) |
2471 | { |
2928 | { |
2472 | #ifndef _WIN32 |
2929 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2473 | sigset_t full, prev; |
2930 | if (sigfd < 0 && errno == EINVAL) |
2474 | sigfillset (&full); |
2931 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2475 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2476 | #endif |
|
|
2477 | |
2932 | |
2478 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2933 | if (sigfd >= 0) |
|
|
2934 | { |
|
|
2935 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2479 | |
2936 | |
2480 | #ifndef _WIN32 |
2937 | sigemptyset (&sigfd_set); |
2481 | sigprocmask (SIG_SETMASK, &prev, 0); |
2938 | |
2482 | #endif |
2939 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2940 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2941 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2942 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2943 | } |
2483 | } |
2944 | } |
|
|
2945 | |
|
|
2946 | if (sigfd >= 0) |
|
|
2947 | { |
|
|
2948 | /* TODO: check .head */ |
|
|
2949 | sigaddset (&sigfd_set, w->signum); |
|
|
2950 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2951 | |
|
|
2952 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2953 | } |
|
|
2954 | #endif |
2484 | |
2955 | |
2485 | ev_start (EV_A_ (W)w, 1); |
2956 | ev_start (EV_A_ (W)w, 1); |
2486 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2957 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2487 | |
2958 | |
2488 | if (!((WL)w)->next) |
2959 | if (!((WL)w)->next) |
|
|
2960 | # if EV_USE_SIGNALFD |
|
|
2961 | if (sigfd < 0) /*TODO*/ |
|
|
2962 | # endif |
2489 | { |
2963 | { |
2490 | #if _WIN32 |
2964 | # ifdef _WIN32 |
|
|
2965 | evpipe_init (EV_A); |
|
|
2966 | |
2491 | signal (w->signum, ev_sighandler); |
2967 | signal (w->signum, ev_sighandler); |
2492 | #else |
2968 | # else |
2493 | struct sigaction sa; |
2969 | struct sigaction sa; |
|
|
2970 | |
|
|
2971 | evpipe_init (EV_A); |
|
|
2972 | |
2494 | sa.sa_handler = ev_sighandler; |
2973 | sa.sa_handler = ev_sighandler; |
2495 | sigfillset (&sa.sa_mask); |
2974 | sigfillset (&sa.sa_mask); |
2496 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2975 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2497 | sigaction (w->signum, &sa, 0); |
2976 | sigaction (w->signum, &sa, 0); |
|
|
2977 | |
|
|
2978 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2979 | { |
|
|
2980 | sigemptyset (&sa.sa_mask); |
|
|
2981 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2982 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2983 | } |
2498 | #endif |
2984 | #endif |
2499 | } |
2985 | } |
2500 | |
2986 | |
2501 | EV_FREQUENT_CHECK; |
2987 | EV_FREQUENT_CHECK; |
2502 | } |
2988 | } |
2503 | |
2989 | |
2504 | void noinline |
2990 | void noinline |
… | |
… | |
2512 | |
2998 | |
2513 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2999 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2514 | ev_stop (EV_A_ (W)w); |
3000 | ev_stop (EV_A_ (W)w); |
2515 | |
3001 | |
2516 | if (!signals [w->signum - 1].head) |
3002 | if (!signals [w->signum - 1].head) |
|
|
3003 | { |
|
|
3004 | #if EV_MULTIPLICITY |
|
|
3005 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3006 | #endif |
|
|
3007 | #if EV_USE_SIGNALFD |
|
|
3008 | if (sigfd >= 0) |
|
|
3009 | { |
|
|
3010 | sigset_t ss; |
|
|
3011 | |
|
|
3012 | sigemptyset (&ss); |
|
|
3013 | sigaddset (&ss, w->signum); |
|
|
3014 | sigdelset (&sigfd_set, w->signum); |
|
|
3015 | |
|
|
3016 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3017 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3018 | } |
|
|
3019 | else |
|
|
3020 | #endif |
2517 | signal (w->signum, SIG_DFL); |
3021 | signal (w->signum, SIG_DFL); |
|
|
3022 | } |
2518 | |
3023 | |
2519 | EV_FREQUENT_CHECK; |
3024 | EV_FREQUENT_CHECK; |
2520 | } |
3025 | } |
|
|
3026 | |
|
|
3027 | #endif |
|
|
3028 | |
|
|
3029 | #if EV_CHILD_ENABLE |
2521 | |
3030 | |
2522 | void |
3031 | void |
2523 | ev_child_start (EV_P_ ev_child *w) |
3032 | ev_child_start (EV_P_ ev_child *w) |
2524 | { |
3033 | { |
2525 | #if EV_MULTIPLICITY |
3034 | #if EV_MULTIPLICITY |
… | |
… | |
2529 | return; |
3038 | return; |
2530 | |
3039 | |
2531 | EV_FREQUENT_CHECK; |
3040 | EV_FREQUENT_CHECK; |
2532 | |
3041 | |
2533 | ev_start (EV_A_ (W)w, 1); |
3042 | ev_start (EV_A_ (W)w, 1); |
2534 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3043 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2535 | |
3044 | |
2536 | EV_FREQUENT_CHECK; |
3045 | EV_FREQUENT_CHECK; |
2537 | } |
3046 | } |
2538 | |
3047 | |
2539 | void |
3048 | void |
… | |
… | |
2543 | if (expect_false (!ev_is_active (w))) |
3052 | if (expect_false (!ev_is_active (w))) |
2544 | return; |
3053 | return; |
2545 | |
3054 | |
2546 | EV_FREQUENT_CHECK; |
3055 | EV_FREQUENT_CHECK; |
2547 | |
3056 | |
2548 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3057 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2549 | ev_stop (EV_A_ (W)w); |
3058 | ev_stop (EV_A_ (W)w); |
2550 | |
3059 | |
2551 | EV_FREQUENT_CHECK; |
3060 | EV_FREQUENT_CHECK; |
2552 | } |
3061 | } |
|
|
3062 | |
|
|
3063 | #endif |
2553 | |
3064 | |
2554 | #if EV_STAT_ENABLE |
3065 | #if EV_STAT_ENABLE |
2555 | |
3066 | |
2556 | # ifdef _WIN32 |
3067 | # ifdef _WIN32 |
2557 | # undef lstat |
3068 | # undef lstat |
… | |
… | |
2563 | #define MIN_STAT_INTERVAL 0.1074891 |
3074 | #define MIN_STAT_INTERVAL 0.1074891 |
2564 | |
3075 | |
2565 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3076 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2566 | |
3077 | |
2567 | #if EV_USE_INOTIFY |
3078 | #if EV_USE_INOTIFY |
2568 | # define EV_INOTIFY_BUFSIZE 8192 |
3079 | |
|
|
3080 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3081 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2569 | |
3082 | |
2570 | static void noinline |
3083 | static void noinline |
2571 | infy_add (EV_P_ ev_stat *w) |
3084 | infy_add (EV_P_ ev_stat *w) |
2572 | { |
3085 | { |
2573 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3086 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2574 | |
3087 | |
2575 | if (w->wd < 0) |
3088 | if (w->wd >= 0) |
|
|
3089 | { |
|
|
3090 | struct statfs sfs; |
|
|
3091 | |
|
|
3092 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3093 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3094 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3095 | |
|
|
3096 | if (!fs_2625) |
|
|
3097 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3098 | else if (!statfs (w->path, &sfs) |
|
|
3099 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3100 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3101 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3102 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3103 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3104 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3105 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3106 | else |
|
|
3107 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2576 | { |
3108 | } |
|
|
3109 | else |
|
|
3110 | { |
|
|
3111 | /* can't use inotify, continue to stat */ |
2577 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3112 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2578 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2579 | |
3113 | |
2580 | /* monitor some parent directory for speedup hints */ |
3114 | /* if path is not there, monitor some parent directory for speedup hints */ |
2581 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3115 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2582 | /* but an efficiency issue only */ |
3116 | /* but an efficiency issue only */ |
2583 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3117 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2584 | { |
3118 | { |
2585 | char path [4096]; |
3119 | char path [4096]; |
… | |
… | |
2595 | if (!pend || pend == path) |
3129 | if (!pend || pend == path) |
2596 | break; |
3130 | break; |
2597 | |
3131 | |
2598 | *pend = 0; |
3132 | *pend = 0; |
2599 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3133 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2600 | } |
3134 | } |
2601 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3135 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2602 | } |
3136 | } |
2603 | } |
3137 | } |
2604 | |
3138 | |
2605 | if (w->wd >= 0) |
3139 | if (w->wd >= 0) |
2606 | { |
|
|
2607 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3140 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2608 | |
3141 | |
2609 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3142 | /* now re-arm timer, if required */ |
2610 | /* unless the filesystem it known to be local, we therefore still poll */ |
3143 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2611 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2612 | struct statfs sfs; |
|
|
2613 | |
|
|
2614 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2615 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2616 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2617 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2618 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2619 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2620 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2621 | return; |
|
|
2622 | |
|
|
2623 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2624 | ev_timer_again (EV_A_ &w->timer); |
3144 | ev_timer_again (EV_A_ &w->timer); |
2625 | } |
3145 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2626 | } |
3146 | } |
2627 | |
3147 | |
2628 | static void noinline |
3148 | static void noinline |
2629 | infy_del (EV_P_ ev_stat *w) |
3149 | infy_del (EV_P_ ev_stat *w) |
2630 | { |
3150 | { |
… | |
… | |
2633 | |
3153 | |
2634 | if (wd < 0) |
3154 | if (wd < 0) |
2635 | return; |
3155 | return; |
2636 | |
3156 | |
2637 | w->wd = -2; |
3157 | w->wd = -2; |
2638 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3158 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2639 | wlist_del (&fs_hash [slot].head, (WL)w); |
3159 | wlist_del (&fs_hash [slot].head, (WL)w); |
2640 | |
3160 | |
2641 | /* remove this watcher, if others are watching it, they will rearm */ |
3161 | /* remove this watcher, if others are watching it, they will rearm */ |
2642 | inotify_rm_watch (fs_fd, wd); |
3162 | inotify_rm_watch (fs_fd, wd); |
2643 | } |
3163 | } |
… | |
… | |
2645 | static void noinline |
3165 | static void noinline |
2646 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3166 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2647 | { |
3167 | { |
2648 | if (slot < 0) |
3168 | if (slot < 0) |
2649 | /* overflow, need to check for all hash slots */ |
3169 | /* overflow, need to check for all hash slots */ |
2650 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3170 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2651 | infy_wd (EV_A_ slot, wd, ev); |
3171 | infy_wd (EV_A_ slot, wd, ev); |
2652 | else |
3172 | else |
2653 | { |
3173 | { |
2654 | WL w_; |
3174 | WL w_; |
2655 | |
3175 | |
2656 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3176 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2657 | { |
3177 | { |
2658 | ev_stat *w = (ev_stat *)w_; |
3178 | ev_stat *w = (ev_stat *)w_; |
2659 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3179 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2660 | |
3180 | |
2661 | if (w->wd == wd || wd == -1) |
3181 | if (w->wd == wd || wd == -1) |
2662 | { |
3182 | { |
2663 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3183 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2664 | { |
3184 | { |
2665 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3185 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2666 | w->wd = -1; |
3186 | w->wd = -1; |
2667 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3187 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2668 | } |
3188 | } |
2669 | |
3189 | |
2670 | stat_timer_cb (EV_A_ &w->timer, 0); |
3190 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2675 | |
3195 | |
2676 | static void |
3196 | static void |
2677 | infy_cb (EV_P_ ev_io *w, int revents) |
3197 | infy_cb (EV_P_ ev_io *w, int revents) |
2678 | { |
3198 | { |
2679 | char buf [EV_INOTIFY_BUFSIZE]; |
3199 | char buf [EV_INOTIFY_BUFSIZE]; |
2680 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2681 | int ofs; |
3200 | int ofs; |
2682 | int len = read (fs_fd, buf, sizeof (buf)); |
3201 | int len = read (fs_fd, buf, sizeof (buf)); |
2683 | |
3202 | |
2684 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3203 | for (ofs = 0; ofs < len; ) |
|
|
3204 | { |
|
|
3205 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2685 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3206 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3207 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3208 | } |
2686 | } |
3209 | } |
2687 | |
3210 | |
2688 | inline_size void |
3211 | inline_size void |
2689 | check_2625 (EV_P) |
3212 | ev_check_2625 (EV_P) |
2690 | { |
3213 | { |
2691 | /* kernels < 2.6.25 are borked |
3214 | /* kernels < 2.6.25 are borked |
2692 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3215 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2693 | */ |
3216 | */ |
2694 | struct utsname buf; |
3217 | if (ev_linux_version () < 0x020619) |
2695 | int major, minor, micro; |
|
|
2696 | |
|
|
2697 | if (uname (&buf)) |
|
|
2698 | return; |
3218 | return; |
2699 | |
3219 | |
2700 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2701 | return; |
|
|
2702 | |
|
|
2703 | if (major < 2 |
|
|
2704 | || (major == 2 && minor < 6) |
|
|
2705 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2706 | return; |
|
|
2707 | |
|
|
2708 | fs_2625 = 1; |
3220 | fs_2625 = 1; |
|
|
3221 | } |
|
|
3222 | |
|
|
3223 | inline_size int |
|
|
3224 | infy_newfd (void) |
|
|
3225 | { |
|
|
3226 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3227 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3228 | if (fd >= 0) |
|
|
3229 | return fd; |
|
|
3230 | #endif |
|
|
3231 | return inotify_init (); |
2709 | } |
3232 | } |
2710 | |
3233 | |
2711 | inline_size void |
3234 | inline_size void |
2712 | infy_init (EV_P) |
3235 | infy_init (EV_P) |
2713 | { |
3236 | { |
2714 | if (fs_fd != -2) |
3237 | if (fs_fd != -2) |
2715 | return; |
3238 | return; |
2716 | |
3239 | |
2717 | fs_fd = -1; |
3240 | fs_fd = -1; |
2718 | |
3241 | |
2719 | check_2625 (EV_A); |
3242 | ev_check_2625 (EV_A); |
2720 | |
3243 | |
2721 | fs_fd = inotify_init (); |
3244 | fs_fd = infy_newfd (); |
2722 | |
3245 | |
2723 | if (fs_fd >= 0) |
3246 | if (fs_fd >= 0) |
2724 | { |
3247 | { |
|
|
3248 | fd_intern (fs_fd); |
2725 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3249 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2726 | ev_set_priority (&fs_w, EV_MAXPRI); |
3250 | ev_set_priority (&fs_w, EV_MAXPRI); |
2727 | ev_io_start (EV_A_ &fs_w); |
3251 | ev_io_start (EV_A_ &fs_w); |
|
|
3252 | ev_unref (EV_A); |
2728 | } |
3253 | } |
2729 | } |
3254 | } |
2730 | |
3255 | |
2731 | inline_size void |
3256 | inline_size void |
2732 | infy_fork (EV_P) |
3257 | infy_fork (EV_P) |
… | |
… | |
2734 | int slot; |
3259 | int slot; |
2735 | |
3260 | |
2736 | if (fs_fd < 0) |
3261 | if (fs_fd < 0) |
2737 | return; |
3262 | return; |
2738 | |
3263 | |
|
|
3264 | ev_ref (EV_A); |
|
|
3265 | ev_io_stop (EV_A_ &fs_w); |
2739 | close (fs_fd); |
3266 | close (fs_fd); |
2740 | fs_fd = inotify_init (); |
3267 | fs_fd = infy_newfd (); |
2741 | |
3268 | |
|
|
3269 | if (fs_fd >= 0) |
|
|
3270 | { |
|
|
3271 | fd_intern (fs_fd); |
|
|
3272 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3273 | ev_io_start (EV_A_ &fs_w); |
|
|
3274 | ev_unref (EV_A); |
|
|
3275 | } |
|
|
3276 | |
2742 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3277 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2743 | { |
3278 | { |
2744 | WL w_ = fs_hash [slot].head; |
3279 | WL w_ = fs_hash [slot].head; |
2745 | fs_hash [slot].head = 0; |
3280 | fs_hash [slot].head = 0; |
2746 | |
3281 | |
2747 | while (w_) |
3282 | while (w_) |
… | |
… | |
2752 | w->wd = -1; |
3287 | w->wd = -1; |
2753 | |
3288 | |
2754 | if (fs_fd >= 0) |
3289 | if (fs_fd >= 0) |
2755 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3290 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2756 | else |
3291 | else |
|
|
3292 | { |
|
|
3293 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3294 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2757 | ev_timer_again (EV_A_ &w->timer); |
3295 | ev_timer_again (EV_A_ &w->timer); |
|
|
3296 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3297 | } |
2758 | } |
3298 | } |
2759 | } |
3299 | } |
2760 | } |
3300 | } |
2761 | |
3301 | |
2762 | #endif |
3302 | #endif |
… | |
… | |
2779 | static void noinline |
3319 | static void noinline |
2780 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3320 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2781 | { |
3321 | { |
2782 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3322 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2783 | |
3323 | |
2784 | /* we copy this here each the time so that */ |
3324 | ev_statdata prev = w->attr; |
2785 | /* prev has the old value when the callback gets invoked */ |
|
|
2786 | w->prev = w->attr; |
|
|
2787 | ev_stat_stat (EV_A_ w); |
3325 | ev_stat_stat (EV_A_ w); |
2788 | |
3326 | |
2789 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3327 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2790 | if ( |
3328 | if ( |
2791 | w->prev.st_dev != w->attr.st_dev |
3329 | prev.st_dev != w->attr.st_dev |
2792 | || w->prev.st_ino != w->attr.st_ino |
3330 | || prev.st_ino != w->attr.st_ino |
2793 | || w->prev.st_mode != w->attr.st_mode |
3331 | || prev.st_mode != w->attr.st_mode |
2794 | || w->prev.st_nlink != w->attr.st_nlink |
3332 | || prev.st_nlink != w->attr.st_nlink |
2795 | || w->prev.st_uid != w->attr.st_uid |
3333 | || prev.st_uid != w->attr.st_uid |
2796 | || w->prev.st_gid != w->attr.st_gid |
3334 | || prev.st_gid != w->attr.st_gid |
2797 | || w->prev.st_rdev != w->attr.st_rdev |
3335 | || prev.st_rdev != w->attr.st_rdev |
2798 | || w->prev.st_size != w->attr.st_size |
3336 | || prev.st_size != w->attr.st_size |
2799 | || w->prev.st_atime != w->attr.st_atime |
3337 | || prev.st_atime != w->attr.st_atime |
2800 | || w->prev.st_mtime != w->attr.st_mtime |
3338 | || prev.st_mtime != w->attr.st_mtime |
2801 | || w->prev.st_ctime != w->attr.st_ctime |
3339 | || prev.st_ctime != w->attr.st_ctime |
2802 | ) { |
3340 | ) { |
|
|
3341 | /* we only update w->prev on actual differences */ |
|
|
3342 | /* in case we test more often than invoke the callback, */ |
|
|
3343 | /* to ensure that prev is always different to attr */ |
|
|
3344 | w->prev = prev; |
|
|
3345 | |
2803 | #if EV_USE_INOTIFY |
3346 | #if EV_USE_INOTIFY |
2804 | if (fs_fd >= 0) |
3347 | if (fs_fd >= 0) |
2805 | { |
3348 | { |
2806 | infy_del (EV_A_ w); |
3349 | infy_del (EV_A_ w); |
2807 | infy_add (EV_A_ w); |
3350 | infy_add (EV_A_ w); |
… | |
… | |
2832 | |
3375 | |
2833 | if (fs_fd >= 0) |
3376 | if (fs_fd >= 0) |
2834 | infy_add (EV_A_ w); |
3377 | infy_add (EV_A_ w); |
2835 | else |
3378 | else |
2836 | #endif |
3379 | #endif |
|
|
3380 | { |
2837 | ev_timer_again (EV_A_ &w->timer); |
3381 | ev_timer_again (EV_A_ &w->timer); |
|
|
3382 | ev_unref (EV_A); |
|
|
3383 | } |
2838 | |
3384 | |
2839 | ev_start (EV_A_ (W)w, 1); |
3385 | ev_start (EV_A_ (W)w, 1); |
2840 | |
3386 | |
2841 | EV_FREQUENT_CHECK; |
3387 | EV_FREQUENT_CHECK; |
2842 | } |
3388 | } |
… | |
… | |
2851 | EV_FREQUENT_CHECK; |
3397 | EV_FREQUENT_CHECK; |
2852 | |
3398 | |
2853 | #if EV_USE_INOTIFY |
3399 | #if EV_USE_INOTIFY |
2854 | infy_del (EV_A_ w); |
3400 | infy_del (EV_A_ w); |
2855 | #endif |
3401 | #endif |
|
|
3402 | |
|
|
3403 | if (ev_is_active (&w->timer)) |
|
|
3404 | { |
|
|
3405 | ev_ref (EV_A); |
2856 | ev_timer_stop (EV_A_ &w->timer); |
3406 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3407 | } |
2857 | |
3408 | |
2858 | ev_stop (EV_A_ (W)w); |
3409 | ev_stop (EV_A_ (W)w); |
2859 | |
3410 | |
2860 | EV_FREQUENT_CHECK; |
3411 | EV_FREQUENT_CHECK; |
2861 | } |
3412 | } |
… | |
… | |
2906 | |
3457 | |
2907 | EV_FREQUENT_CHECK; |
3458 | EV_FREQUENT_CHECK; |
2908 | } |
3459 | } |
2909 | #endif |
3460 | #endif |
2910 | |
3461 | |
|
|
3462 | #if EV_PREPARE_ENABLE |
2911 | void |
3463 | void |
2912 | ev_prepare_start (EV_P_ ev_prepare *w) |
3464 | ev_prepare_start (EV_P_ ev_prepare *w) |
2913 | { |
3465 | { |
2914 | if (expect_false (ev_is_active (w))) |
3466 | if (expect_false (ev_is_active (w))) |
2915 | return; |
3467 | return; |
… | |
… | |
2941 | |
3493 | |
2942 | ev_stop (EV_A_ (W)w); |
3494 | ev_stop (EV_A_ (W)w); |
2943 | |
3495 | |
2944 | EV_FREQUENT_CHECK; |
3496 | EV_FREQUENT_CHECK; |
2945 | } |
3497 | } |
|
|
3498 | #endif |
2946 | |
3499 | |
|
|
3500 | #if EV_CHECK_ENABLE |
2947 | void |
3501 | void |
2948 | ev_check_start (EV_P_ ev_check *w) |
3502 | ev_check_start (EV_P_ ev_check *w) |
2949 | { |
3503 | { |
2950 | if (expect_false (ev_is_active (w))) |
3504 | if (expect_false (ev_is_active (w))) |
2951 | return; |
3505 | return; |
… | |
… | |
2977 | |
3531 | |
2978 | ev_stop (EV_A_ (W)w); |
3532 | ev_stop (EV_A_ (W)w); |
2979 | |
3533 | |
2980 | EV_FREQUENT_CHECK; |
3534 | EV_FREQUENT_CHECK; |
2981 | } |
3535 | } |
|
|
3536 | #endif |
2982 | |
3537 | |
2983 | #if EV_EMBED_ENABLE |
3538 | #if EV_EMBED_ENABLE |
2984 | void noinline |
3539 | void noinline |
2985 | ev_embed_sweep (EV_P_ ev_embed *w) |
3540 | ev_embed_sweep (EV_P_ ev_embed *w) |
2986 | { |
3541 | { |
2987 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3542 | ev_run (w->other, EVRUN_NOWAIT); |
2988 | } |
3543 | } |
2989 | |
3544 | |
2990 | static void |
3545 | static void |
2991 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3546 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2992 | { |
3547 | { |
2993 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3548 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2994 | |
3549 | |
2995 | if (ev_cb (w)) |
3550 | if (ev_cb (w)) |
2996 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3551 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2997 | else |
3552 | else |
2998 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3553 | ev_run (w->other, EVRUN_NOWAIT); |
2999 | } |
3554 | } |
3000 | |
3555 | |
3001 | static void |
3556 | static void |
3002 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3557 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3003 | { |
3558 | { |
3004 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3559 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3005 | |
3560 | |
3006 | { |
3561 | { |
3007 | struct ev_loop *loop = w->other; |
3562 | EV_P = w->other; |
3008 | |
3563 | |
3009 | while (fdchangecnt) |
3564 | while (fdchangecnt) |
3010 | { |
3565 | { |
3011 | fd_reify (EV_A); |
3566 | fd_reify (EV_A); |
3012 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3567 | ev_run (EV_A_ EVRUN_NOWAIT); |
3013 | } |
3568 | } |
3014 | } |
3569 | } |
3015 | } |
3570 | } |
3016 | |
3571 | |
3017 | static void |
3572 | static void |
… | |
… | |
3020 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3575 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3021 | |
3576 | |
3022 | ev_embed_stop (EV_A_ w); |
3577 | ev_embed_stop (EV_A_ w); |
3023 | |
3578 | |
3024 | { |
3579 | { |
3025 | struct ev_loop *loop = w->other; |
3580 | EV_P = w->other; |
3026 | |
3581 | |
3027 | ev_loop_fork (EV_A); |
3582 | ev_loop_fork (EV_A); |
3028 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3583 | ev_run (EV_A_ EVRUN_NOWAIT); |
3029 | } |
3584 | } |
3030 | |
3585 | |
3031 | ev_embed_start (EV_A_ w); |
3586 | ev_embed_start (EV_A_ w); |
3032 | } |
3587 | } |
3033 | |
3588 | |
… | |
… | |
3044 | { |
3599 | { |
3045 | if (expect_false (ev_is_active (w))) |
3600 | if (expect_false (ev_is_active (w))) |
3046 | return; |
3601 | return; |
3047 | |
3602 | |
3048 | { |
3603 | { |
3049 | struct ev_loop *loop = w->other; |
3604 | EV_P = w->other; |
3050 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3605 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3051 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3606 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3052 | } |
3607 | } |
3053 | |
3608 | |
3054 | EV_FREQUENT_CHECK; |
3609 | EV_FREQUENT_CHECK; |
… | |
… | |
3081 | |
3636 | |
3082 | ev_io_stop (EV_A_ &w->io); |
3637 | ev_io_stop (EV_A_ &w->io); |
3083 | ev_prepare_stop (EV_A_ &w->prepare); |
3638 | ev_prepare_stop (EV_A_ &w->prepare); |
3084 | ev_fork_stop (EV_A_ &w->fork); |
3639 | ev_fork_stop (EV_A_ &w->fork); |
3085 | |
3640 | |
|
|
3641 | ev_stop (EV_A_ (W)w); |
|
|
3642 | |
3086 | EV_FREQUENT_CHECK; |
3643 | EV_FREQUENT_CHECK; |
3087 | } |
3644 | } |
3088 | #endif |
3645 | #endif |
3089 | |
3646 | |
3090 | #if EV_FORK_ENABLE |
3647 | #if EV_FORK_ENABLE |
… | |
… | |
3123 | |
3680 | |
3124 | EV_FREQUENT_CHECK; |
3681 | EV_FREQUENT_CHECK; |
3125 | } |
3682 | } |
3126 | #endif |
3683 | #endif |
3127 | |
3684 | |
3128 | #if EV_ASYNC_ENABLE |
3685 | #if EV_CLEANUP_ENABLE |
3129 | void |
3686 | void |
3130 | ev_async_start (EV_P_ ev_async *w) |
3687 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3131 | { |
3688 | { |
3132 | if (expect_false (ev_is_active (w))) |
3689 | if (expect_false (ev_is_active (w))) |
3133 | return; |
3690 | return; |
|
|
3691 | |
|
|
3692 | EV_FREQUENT_CHECK; |
|
|
3693 | |
|
|
3694 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3695 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3696 | cleanups [cleanupcnt - 1] = w; |
|
|
3697 | |
|
|
3698 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3699 | ev_unref (EV_A); |
|
|
3700 | EV_FREQUENT_CHECK; |
|
|
3701 | } |
|
|
3702 | |
|
|
3703 | void |
|
|
3704 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3705 | { |
|
|
3706 | clear_pending (EV_A_ (W)w); |
|
|
3707 | if (expect_false (!ev_is_active (w))) |
|
|
3708 | return; |
|
|
3709 | |
|
|
3710 | EV_FREQUENT_CHECK; |
|
|
3711 | ev_ref (EV_A); |
|
|
3712 | |
|
|
3713 | { |
|
|
3714 | int active = ev_active (w); |
|
|
3715 | |
|
|
3716 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3717 | ev_active (cleanups [active - 1]) = active; |
|
|
3718 | } |
|
|
3719 | |
|
|
3720 | ev_stop (EV_A_ (W)w); |
|
|
3721 | |
|
|
3722 | EV_FREQUENT_CHECK; |
|
|
3723 | } |
|
|
3724 | #endif |
|
|
3725 | |
|
|
3726 | #if EV_ASYNC_ENABLE |
|
|
3727 | void |
|
|
3728 | ev_async_start (EV_P_ ev_async *w) |
|
|
3729 | { |
|
|
3730 | if (expect_false (ev_is_active (w))) |
|
|
3731 | return; |
|
|
3732 | |
|
|
3733 | w->sent = 0; |
3134 | |
3734 | |
3135 | evpipe_init (EV_A); |
3735 | evpipe_init (EV_A); |
3136 | |
3736 | |
3137 | EV_FREQUENT_CHECK; |
3737 | EV_FREQUENT_CHECK; |
3138 | |
3738 | |
… | |
… | |
3166 | |
3766 | |
3167 | void |
3767 | void |
3168 | ev_async_send (EV_P_ ev_async *w) |
3768 | ev_async_send (EV_P_ ev_async *w) |
3169 | { |
3769 | { |
3170 | w->sent = 1; |
3770 | w->sent = 1; |
3171 | evpipe_write (EV_A_ &gotasync); |
3771 | evpipe_write (EV_A_ &async_pending); |
3172 | } |
3772 | } |
3173 | #endif |
3773 | #endif |
3174 | |
3774 | |
3175 | /*****************************************************************************/ |
3775 | /*****************************************************************************/ |
3176 | |
3776 | |
… | |
… | |
3216 | { |
3816 | { |
3217 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3817 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3218 | |
3818 | |
3219 | if (expect_false (!once)) |
3819 | if (expect_false (!once)) |
3220 | { |
3820 | { |
3221 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3821 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3222 | return; |
3822 | return; |
3223 | } |
3823 | } |
3224 | |
3824 | |
3225 | once->cb = cb; |
3825 | once->cb = cb; |
3226 | once->arg = arg; |
3826 | once->arg = arg; |
… | |
… | |
3313 | if (types & EV_ASYNC) |
3913 | if (types & EV_ASYNC) |
3314 | for (i = asynccnt; i--; ) |
3914 | for (i = asynccnt; i--; ) |
3315 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3915 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3316 | #endif |
3916 | #endif |
3317 | |
3917 | |
|
|
3918 | #if EV_PREPARE_ENABLE |
3318 | if (types & EV_PREPARE) |
3919 | if (types & EV_PREPARE) |
3319 | for (i = preparecnt; i--; ) |
3920 | for (i = preparecnt; i--; ) |
3320 | #if EV_EMBED_ENABLE |
3921 | # if EV_EMBED_ENABLE |
3321 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3922 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3322 | #endif |
3923 | # endif |
3323 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3924 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3925 | #endif |
3324 | |
3926 | |
|
|
3927 | #if EV_CHECK_ENABLE |
3325 | if (types & EV_CHECK) |
3928 | if (types & EV_CHECK) |
3326 | for (i = checkcnt; i--; ) |
3929 | for (i = checkcnt; i--; ) |
3327 | cb (EV_A_ EV_CHECK, checks [i]); |
3930 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3931 | #endif |
3328 | |
3932 | |
|
|
3933 | #if EV_SIGNAL_ENABLE |
3329 | if (types & EV_SIGNAL) |
3934 | if (types & EV_SIGNAL) |
3330 | for (i = 0; i < signalmax; ++i) |
3935 | for (i = 0; i < EV_NSIG - 1; ++i) |
3331 | for (wl = signals [i].head; wl; ) |
3936 | for (wl = signals [i].head; wl; ) |
3332 | { |
3937 | { |
3333 | wn = wl->next; |
3938 | wn = wl->next; |
3334 | cb (EV_A_ EV_SIGNAL, wl); |
3939 | cb (EV_A_ EV_SIGNAL, wl); |
3335 | wl = wn; |
3940 | wl = wn; |
3336 | } |
3941 | } |
|
|
3942 | #endif |
3337 | |
3943 | |
|
|
3944 | #if EV_CHILD_ENABLE |
3338 | if (types & EV_CHILD) |
3945 | if (types & EV_CHILD) |
3339 | for (i = EV_PID_HASHSIZE; i--; ) |
3946 | for (i = (EV_PID_HASHSIZE); i--; ) |
3340 | for (wl = childs [i]; wl; ) |
3947 | for (wl = childs [i]; wl; ) |
3341 | { |
3948 | { |
3342 | wn = wl->next; |
3949 | wn = wl->next; |
3343 | cb (EV_A_ EV_CHILD, wl); |
3950 | cb (EV_A_ EV_CHILD, wl); |
3344 | wl = wn; |
3951 | wl = wn; |
3345 | } |
3952 | } |
|
|
3953 | #endif |
3346 | /* EV_STAT 0x00001000 /* stat data changed */ |
3954 | /* EV_STAT 0x00001000 /* stat data changed */ |
3347 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3955 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3348 | } |
3956 | } |
3349 | #endif |
3957 | #endif |
3350 | |
3958 | |
3351 | #if EV_MULTIPLICITY |
3959 | #if EV_MULTIPLICITY |
3352 | #include "ev_wrap.h" |
3960 | #include "ev_wrap.h" |
3353 | #endif |
3961 | #endif |
3354 | |
3962 | |
3355 | #ifdef __cplusplus |
3963 | EV_CPP(}) |
3356 | } |
|
|
3357 | #endif |
|
|
3358 | |
3964 | |